> Classifieds > > > 5963 / 5814 / 6680 / 6189 / which are upgrade military graded 12AU7 tubes

FOR SALE or TRADE: 5963 / 5814 / 6680 / 6189 / which are upgrade military graded 12AU7 tubes

Item #649338458
Info: 5963 / 5814 / 6680 / 6189 / which are upgrade military graded 12AU7 tubes

Asking Price:
CAD $70.00
Payment method: Cash, Paypal, Money Order, Money Wire, Interac/EMT
Condition: 9 - Excellent (?)
Date Posted: Jul 04, 18 5:10am (PST)
Edited: Jul 22, 18 10:34am* Updated!
About Seller: David Dov
David Dov is a premium user
North York,Toronto, ON
Canada
[other classified ads]
Feedback Received: 616  See details
100% Positive Feedback
Days in System:20
Views:48
Avg. Views/Day:2.53

Share |

Description

Sponsored post - log in to remove this ad.

ATTENTION all CAM member tube shoppers...

Just wait until you listen to all the types of 5963's @ $60.00/matched pair!

Another 12AU7A variant
The 5963 IS A MEDIUM-MU TWIN TRIODE. 9—PIN MINIATURE TYPE
A variant of the 12AU7 family of tubes
Very little is written about these 5963 tubes.
It's practically today unknown, yet these are excellent fantastic replacements for 12AU7 tubes!
Smooth and sweet,yet bargain priced compared with many European brands!
Very smooth tube from top to bottom with no weakness!
These are a nice industrial/military upgrade variant type which is nearly identical to the standard 12AU7.
RCA made a nice black plate version of this tube
The 1950’s RCA 5963 sounds more dynamic than the standard 12AU7 Blackplate
It’s also a very good low-noise tube.
Sylvania has a gold pin version, and GE has it in their 5-star broadcast line.
The plate voltage rating is a little lower than for a 12AU7, but for most applications, it will work fine.
It has a rugged cathode and should be quite long lived, similar to the 5814.
That specially-designed cathode is said to withstand long periods of time in cut-off without damaging the tube (cathode poisoning).
This made them a great choice for NORAD computers, which led to a good supply of them on the USA West Coast.
Use them and you will marvel at the quality and value.
They are dead-silent and seem to have an unusually long lifespan.
Very satisfied with the sound they produce.
A truly fine 12AU7 variant from the 1950's, many tube audiophiles feel these can outperform most other NOS 12AU7 tubes!
In computer (and some other) service, tubes were quite often operated as switches, biased to cutoff (no plate current) for long periods of time and then turned on, while always the heater and cathode were warmed up and ready to go.
In ordinary tubes, this leads to a condition known as "cathode interface resistance" or "sleeping sickness."
The cathode interface is a layer of metal, usually nickel, between the cathode sleeve and the oxide coating that emits electrons. In ordinary tubes, under conditions of long-duration tube cutoff, it generates a growing resistance until at last the cathode "goes to sleep."
Computer tube cathodes were specially treated to survive those long periods of cutoff without developing cathode interface resistance

[PDF]5963
www.r-type.org/pdfs/5963.pdf

[PDF]5963
https://frank.pocnet.net/sheets/049/5/5963.pdf
A great article on using computer tubes like the 5963 for audio use:
http://www.effectrode.com/tubes-computer-applications/

5963 tubes (12AU7 variants) from $60.00/pair

G.E. short grey plates (1960's) @ $60.00 / pair
RCA grey short plates (1960's) @ $60.00 / pair
RCA black plates vintage(1950's) @ $60.00 / pair

Also have some Made-in the-USA 12AU7 black plate tubes in very good condition.
Very lightly used! (used/burned in for 10 hours)
Barely broken-in.
Usually sell for over $100.00 Cdn)
You can have them at $80.00/pair!

Selling off some more of my tube collection of 50 years!
This ad is for the very desirable triple mica version G.E. 5814A tubes
Made in USA.
These are an excellent upgrade variant for 12AU7 tubes,
The 5814A is equivalent to a 12AU7WA, it is ruggedized and redesigned
The filament current raised to 175ma per section versus 150ma per section for a 12AU7.
5814A are computer rated, 5814WA is ruggedized
Medium mu twin triode; high-rel, computer-rated variant of 12AU7, as indicated by A suffix; increased heater current.
Base: Noval, B9A
Filament: Vf 12.6 Volts / If 0.175 Ampere / Indirect / Parallel / series AC/DC
All 12AU7 tubes are rated Vhk=200V, 5814A tubes are rated Vhk=100V.
All tubes tested very strong on my B+K tester
Tubes all showed teat results between 2300 - 2450 where minimum on this tubes is 1175.
Brand new tubes usually measure around 2200.
No leaks or shorts.
Tubes are matched with 5%.
$90.00 a matched pair.
Or singles for $50.00

Local GTA pickup also welcomed.
Shipping is by Canada Post regular parcel,
Usually shipping cost is $18.00 per shipment anywhere in Canada.
Keep in mind that 1 - 4 tubes being shipped is the same cost as shipping only a single tube.
All tubes will be properly well bubble wrapped and packaged to ensure safe arrival to you!
Accepted payment is by; Cash/EMT/Canada Post money gram or orders
**FREE Shipping on all orders over $160.00

*As shipping costs to anywhere in Canada is $18.00 (for 1 - 4 tubes)
USD are higher in the United States, shipping is available to USA buyers at their expense,
which usually is $24.00 (for 1 - 4 tubes) to anywhere in the Continental USA

Will bubble wrap and pack most securely for safe arrival
Cash GTA Toronto pick-up is always welcome!
Cash/EMT/Canada Post or Bank money orders
If Paypal +4%

Please see my other ads
Thanks for looking!

ATTENTION all CAM member tube shoppers...
Finding the right tube for your amp/pre amp,you will find that there will be a lot of different opinions ....
Many times all the answers are right.
The complications can be is some tubes can be very system dependent so it will depend on your system as to which tubes sound the best.
We all desire quiet nice sounding tubes.
Why are some tubes noisier then others,or quieter in certain amps and not in others?
Audio tubes need to settle in and then will get better once burned in.
Definitely buy from a reputable dealers!
If you're going to be into tubes, its always beneficial to develop a relationship with dealers you can trust.
If you want to find the best sounding tube for your system and don't mind spending $$, then buy several brands/types and listen for yourself.
Each brand tends to feature characteristics that may appeal to you and match well with your unit, others not so much so there really isn't one 'best-sounding' tube out there as its very dependent on the application.
Also, while these super rare and uber-expensive tubes do sound great, they're best implementation is in sensitive pre amps and phono stages Remember, a good portion of their cost can be attributed to their scarcity, not just their sonics.
They really don't stand out in the usual amplifier's driver stage and in most other gear, a similar but substantially more common NOS tube of the same manufacturer will provide all but maybe the last 1% of the sonics of the super tubes at a much lower price.
Although improving, still many of the new tubes made today in Europe, China and Russia only reproduce random varied harmonics.
This can be why most of us upgrades to a vintage made tube made decades ago when these rare inner earth metals were available in the inside construction of the vintage tube.
These metals have become too expensive to use and today’s tube makers have found cheaper substitutes which seem to work but do not reproduce all the nuances and textures in music! ...

Top of the line variants 12AU7 / ECC82 tubes

Singles of: 5814A / 6680 / 6189 /6189 / 5963 tubes are all an upgrade/military grade variants of 12AU7's
G.E / Heathkit / RCA / JAN ROGERS / TUNG-SOL / WESTINGHOUSE
All test very strong
No shorts or gas leaks!

Price is $70.00 a matched pair!
Shipping to anywhere in Canada is available

Tubes are bubble wrapped and securely well packaged for shipping!
Payment is only by;EMT Interac money transfers, Cash,Canada Post money gram/orders


The ’12AU7′ Tube
Physical dimensions
Physical dimensions

The 12AU7 is a miniature medium-mu twin triode. This tube finds use as a phase-inverter/splitter in push-pull amplifier circuits in ac/dc radio equipment and in many diversified applications such as multivibrators or oscillators in industrial control devices. The tube is quite pokey and sections can even be connected in parallel to create a power amp with enough current to drive a pair of headphones or even a guitar speaker. A centre tapped heater permits operation of the tube from a 6.3V or a 12.6V heater supply. The tube requires a noval nine-contact socket and may be mounted in any position.

DOUBLE TRIODE (separate cathodes)
Heater Voltage 6.3-12 V
Heater Current 300-150 mA
Plate Voltage 250 V
Plate Current 10.5 mA
Plate Resistance 7700 Ω
Amplification Factor (μ) 20
Plate Dissipation (max) 2.75 W
B9A pinout
B9A base pinout

12AU7 tube equivalents:
12AU7/12AU7A: The common U.S.A. version of this tube. The 12AU7 can only be used in parallel filament circuits. Like the 12AX7, this is not a hassle since virtually all hi-fi tube amps are of the parallel filament design. RCA, GE, and Sylvania actually made most of these tubes, regardless of brand on the label. The early RCA version has ribbed flat black plates with a top getter and a white label. This is an amazing tube, one of the best USA 12AU7 tubes ever made and we have a good stock of these. Still available, and still a bargain since everyone wants the “cleartops”: 1960s versions that have grey-plates and the getter on the side, making the top clear. These “cleartops” are currently the hottest selling 12AU7, and are still a great buy at current prices. Watch this tube….I predict in 5 years it will be as hard to find as the Telefunken smoothplate, and just as expensive! The 1970s new logo version (and the late 1940s-1950s version with the white label) of the RCA 12AU7 has greyplates and a top getter. This grey-plate RCA is about the best bargain you can get in a vintage RCA 12AU7. The GE versions pretty much always used grey-plates and a top getter for this tube. The numbers are etched into the glass with a pattern of dots below the number. Don’t miss trying the “organ stock” 12AU7 tubes that were sold to organ manufacturers. These sweet tubes were screened for audio use in organs, and have the organ brand on the label. Usually sold at bargain prices because of the re-branded label, the RCA cleartop and Raytheon blackplate versions are a great find! Tung Sol made an early “blackglass” version in the late 1940s, which hides the inside of the tube from view, and is very rare; later Tung Sol 12AU7 tubes look like early RCA grey-plates inside. All of these vintage tubes used a chalky label paint, and often the tube label is smeared or partially rubbed off. This does not indicate use or poor quality. Rather, it is an indication of a genuine vintage tube, and all of these are excellent quality.
ECC82: This is the European version of the 12AU7, and is identical to it. The brands in demand are Telefunken, Amperex, and Mullard. Telefunken tubes have a diamond shape molded into the bottom of the glass. Both ribbed plate and the more famous smooth-plate types are available, just like the 12AX7, but are being hunted down and soon may be an endangered species. Amperex and Mullard have tiny date codes etched in the glass near the bottom of the tube. The most popular Amperex are the Holland made Bugle Boy series, with the tiny cartoon tube blowing a bugle on the label. They later went to just a white label that said “Amperex”, and then after that used the orange label with the world logo. The earlier Mullard tubes had the word “Mullard” inside of a shield logo, later versions said “IEC Mullard”. Watch for the very rare long plate versions from the 1950s available in most European brands. These had narrow plates that were about 3mm longer than the 1960s and later versions. The earliest had square shape top getter elements, late long-plates have a halo top getter. Even rarer are the Mullard and Amperex made CV491 longplate square getter tubes, made only for the military. Most of these early Mullard tubes can be spotted not only by the date codes and longplates, but by the distinctive “wrinkle” glass, where the surface of the glass tube is not smooth but rather has tiny wrinkles or sometimes an eggshell texture. These are all tubes of unequalled quality, and are worth the high prices they are commanding these days. Even used ones will blow away any of the trashy tubes in production today. Vintage versions again used the chalky paint, and frequently the labels on any of these tubes are usually smeared.
CV491: A military specification version of the ECC82. These are usually found in Mullard or Brimar versions, but I have seen Siemens as well, and some made by Amperex. This tube was made into the 1990s so careful selection needs to be made. The best are the Mullard and Amperex longplates from the 1950s, which look identical to the longplate ECC82. Ei Yugoslavia made a nice smoothplate version into the late 1980s which sounds surprisingly good despite it’s late vintage “East Europe” stigma attached to it. Overall, these are a step up from the standard ECC82 tubes, since they have military specs.
5814: This is a military spec tube. Sometimes the vintage GE versions may be labelled JG-12AU7WA in white and have 5814 etched into the glass. These are all low microphonic thanks to their rigid mica supports. Older versions have a third mica spacer near the top. These “triple mica” versions are in great demand today. The broadcast versions of this tube are the GE 5-star, and the RCA Command series. These vintage tubes have just started to become a hot item, as N.O.S. stocks of the West Europe types become harder to find. These tubes can withstand many on-off cycles and mechanical shock without a problem.
6189/E82CC: This can be both a military spec tube and a premium industrial tube. Often, the military versions will be marked 12AU7WA in addition to having 6189 etched in the glass. The older vintage of these tubes are usually black-plate with the extra “triple mica” spacer at the top. GE made this in their 5-star line for broadcast. The RCA military 6189 is gold lettered 12AU7WA, has black-plates, and extra support rods. These are excellent step up tubes in the 12AU7 family, when you can find them! Look for super rare triple mica versions from Mazda, Siemens, and Mullard, some with silver plates. Among the best 12AU7 tubes ever made.
5963: This is a nice industrial type which is nearly identical to the standard 12AU7. RCA made a nice black-plate version of this tube, Sylvania has a gold pin version, and GE has it in their 5-star broadcast line. The plate voltage rating is a little lower than for a 12AU7, but for most applications, it will work fine. It has a rugged cathode and should be long lived, similar to the 5814. Watch this tube, as it is plentiful now and prices are low. As audiophiles discover it, the rush will be on!
ATTENTION all CAM member tube shoppers...

Just wait until you listen to all the types of 5963's @ $70.00/matched pair!

Another 12AU7A variant he 5963 IS A MEDIUM-MU TWIN TRIODE. 9—PIN MINIATURE TYPE
A variant of the 12AU7 family of tubes
Very little is written about these 5963 tubes.
It's practically today unknown, yet these are excellent fantastic replacements for 12AU7 tubes!
Smooth and sweet,yet bargain priced compared with many European brands!
Very smooth tube from top to bottom with no weakness!
These are a nice industrial/military upgrade variant type which is nearly identical to the standard 12AU7.
RCA made a nice black plate version of this tube
The 1950’s RCA 5963 sounds more dynamic than the standard 12AU7 Blackplate
It’s also a very good low-noise tube.
Sylvania has a gold pin version, and GE has it in their 5-star broadcast line.
The plate voltage rating is a little lower than for a 12AU7, but for most applications, it will work fine.
It has a rugged cathode and should be quite long lived, similar to the 5814.
That specially-designed cathode is said to withstand long periods of time in cut-off without damaging the tube (cathode poisoning).
This made them a great choice for NORAD computers, which led to a good supply of them on the USA West Coast.
Use them and you will marvel at the quality and value.
They are dead-silent and seem to have an unusually long lifespan.
Very satisfied with the sound they produce.
A truly fine 12AU7 variant from the 1950's, many tube audiophiles feel these can outperform most other NOS 12AU7 tubes!
In computer (and some other) service, tubes were quite often operated as switches, biased to cutoff (no plate current) for long periods of time and then turned on, while always the heater and cathode were warmed up and ready to go.
In ordinary tubes, this leads to a condition known as "cathode interface resistance" or "sleeping sickness."
The cathode interface is a layer of metal, usually nickel, between the cathode sleeve and the oxide coating that emits electrons. In ordinary tubes, under conditions of long-duration tube cutoff, it generates a growing resistance until at last the cathode "goes to sleep."
Computer tube cathodes were specially treated to survive those long periods of cutoff without developing cathode interface resistance

[PDF]5963
www.r-type.org/pdfs/5963.pdf

[PDF]5963
https://frank.pocnet.net/sheets/049/5/5963.pdf
A great article on using computer tubes like the 5963 for audio use:
http://www.effectrode.com/tubes-computer-applications/

5963 tubes (12AU7 variants) from $35.00 each

G.E. short grey plates (1960's) @ $35.00 each
RCA grey short plates (1960's) @ $35.00 each
RCA black plates vintage(1950's) @ $35.00 each
RCA / HP short plates (1960-70's( @ $35.00 each

Also have some Made-in the-USA 12AU7 black plate tubes in very good condition.
Very lightly used! (used/burned in for 10 hours)
Barely broken-in.
Usually sell for over $100.00 Cdn)
You can have them at $60.00/pair!

Selling off some more of my tube collection of 50 years!
This ad is for the very desirable triple mica version G.E. 5814A tubes
Made in USA.
These are an excellent upgrade variant for 12AU7 tubes,
The 5814A is equivalent to a 12AU7WA, it is ruggedized and redesigned
The filament current raised to 175ma per section versus 150ma per section for a 12AU7.
5814A are computer rated, 5814WA is ruggedized
Medium mu twin triode; high-rel, computer-rated variant of 12AU7, as indicated by A suffix; increased heater current.
Base: Noval, B9A
Filament: Vf 12.6 Volts / If 0.175 Ampere / Indirect / Parallel / series AC/DC
All 12AU7 tubes are rated Vhk=200V, 5814A tubes are rated Vhk=100V.
All tubes tested very strong on my B+K tester
Tubes all showed teat results between 2300 - 2450 where minimum on this tubes is 1175.
Brand new tubes usually measure around 2200.
No leaks or shorts.

Local GTA pickup also welcomed.
Shipping is by Canada Post regular parcel,
Usually shipping cost is $18.00 per shipment anywhere in Canada.
Keep in mind that 1 - 4 tubes being shipped is the same cost as shipping only a single tube.
All tubes will be properly well bubble wrapped and packaged to ensure safe arrival to you!
Accepted payment is by; Cash/EMT/Canada Post money gram or orders
**FREE Shipping on all orders over $160.00

*As shipping costs to anywhere in Canada is $18.00 (for 1 - 4 tubes)
USD are higher in the United States, shipping is available to USA buyers at their expense,
which usually is $24.00 (for 1 - 4 tubes) to anywhere in the Continental USA

Will bubble wrap and pack most securely for safe arrival
Cash GTA Toronto pick-up is always welcome!
Cash/EMT/Canada Post or Bank money orders
If Paypal +4%

Please see my other ads
Thanks for looking!

ATTENTION all CAM member tube shoppers...
Finding the right tube for your amp/pre amp,you will find that there will be a lot of different opinions ....
Many times all the answers are right.
The complications can be is some tubes can be very system dependent so it will depend on your system as to which tubes sound the best.
We all desire quiet nice sounding tubes.
Why are some tubes noisier then others,or quieter in certain amps and not in others?
Audio tubes need to settle in and then will get better once burned in.
Definitely buy from a reputable dealers!
If you're going to be into tubes, its always beneficial to develop a relationship with dealers you can trust.
If you want to find the best sounding tube for your system and don't mind spending $$, then buy several brands/types and listen for yourself.
Each brand tends to feature characteristics that may appeal to you and match well with your unit, others not so much so there really isn't one 'best-sounding' tube out there as its very dependent on the application.
Also, while these super rare and uber-expensive tubes do sound great, they're best implementation is in sensitive pre amps and phono stages Remember, a good portion of their cost can be attributed to their scarcity, not just their sonics.
They really don't stand out in the usual amplifier's driver stage and in most other gear, a similar but substantially more common NOS tube of the same manufacturer will provide all but maybe the last 1% of the sonics of the super tubes at a much lower price.
Although improving, still many of the new tubes made today in Europe, China and Russia only reproduce random varied harmonics.
This can be why most of us upgrades to a vintage made tube made decades ago when these rare inner earth metals were available in the inside construction of the vintage tube.
These metals have become too expensive to use and today’s tube makers have found cheaper substitutes which seem to work but do not reproduce all the nuances and textures in music! ...

Cash, EMT-Interac transfer preferred
Postal Money Order
PayPal buyer +4%

ATTENTION all CAM member tube shoppers...
Finding the right tube for your amp/pre amp,you will find that there will be a lot of different opinions ....
Many times all the answers are right.
The complications can be is some tubes can be very system dependent so it will depend on your system as to which tubes sound the best.
We all desire quiet nice sounding tubes.
Why are some tubes noisier then others,or quieter in certain amps and not in others?
Audio tubes need to settle in and then will get better once burned in.
Definitely buy from a reputable dealers!
If you're going to be into tubes, its always beneficial to develop a relationship with dealers you can trust.
If you want to find the best sounding tube for your system and don't mind spending $$, then buy several brands/types and listen for yourself.
Each brand tends to feature characteristics that may appeal to you and match well with your unit, others not so much so there really isn't one 'best-sounding' tube out there as its very dependent on the application.
Also, while these super rare and uber-expensive tubes do sound great, they're best implementation is in sensitive pre amps and phono stages Remember, a good portion of their cost can be attributed to their scarcity, not just their sonics.
They really don't stand out in the usual amplifier's driver stage and in most other gear, a similar but substantially more common NOS tube of the same manufacturer will provide all but maybe the last 1% of the sonics of the super tubes at a much lower price.
Although improving, still many of the new tubes made today in Europe, China and Russia only reproduce random varied harmonics.
This can be why most of us upgrades to a vintage made tube made decades ago when these rare inner earth metals were available in the inside construction of the vintage tube.
These metals have become too expensive to use and today’s tube makers have found cheaper substitutes which seem to work but do not reproduce all the nuances and textures in music! ...


Clearing out many assorted brands of vintage 1950 -60's
ECC82 / 12AU7 + ECC83 / 12AX7 ECC81 / 12AT7 tubes
Both Black + Grey Long/Short Plates are available
Mostly are Jan G.E. / Marconi / RCA / Sylvania / Westinghouse
Both short or long grey + black plates are available.
Test strong like new with very closely matched sections.
All have had very little use.
Lettering and logo prints are all excellent!
All these vintage tubes still do test very strong, like new /very close!
All tubes have been tested twice on my mutual conductance calibrated B+K tester
They will test at or close to new.
No gas leaks or shorts.
Each shipped tube is bubble wrapped and well boxed!
Price is @ $25.00 per tube !
Cash, EMT, Canada Post Money orders preferred
PayPal + 4%
1-4 tubes are the same $19.00 shipping cost by Canada Post regular parcel service at buyer's expense
*All orders of $160.00 or more will be shipped Free to anywhere in Canada!


ATTENTION all CAM member tube shoppers...

Just wait until you listen to all the types of 5963's @ $70.00/matched pair!

Another 12AU7A variant
The 5963 IS A MEDIUM-MU TWIN TRIODE. 9—PIN MINIATURE TYPE
A variant of the 12AU7 family of tubes
Very little is written about these 5963 tubes.
It's practically today unknown, yet these are excellent fantastic replacements for 12AU7 tubes!
Smooth and sweet,yet bargain priced compared with many European brands!
Very smooth tube from top to bottom with no weakness!
These are a nice industrial/military upgrade variant type which is nearly identical to the standard 12AU7.
RCA made a nice black plate version of this tube
The 1950’s RCA 5963 sounds more dynamic than the standard 12AU7 Blackplate
It’s also a very good low-noise tube.
Sylvania has a gold pin version, and GE has it in their 5-star broadcast line.
The plate voltage rating is a little lower than for a 12AU7, but for most applications, it will work fine.
It has a rugged cathode and should be quite long lived, similar to the 5814.
That specially-designed cathode is said to withstand long periods of time in cut-off without damaging the tube (cathode poisoning).
This made them a great choice for NORAD computers, which led to a good supply of them on the USA West Coast.
Use them and you will marvel at the quality and value.
They are dead-silent and seem to have an unusually long lifespan.
Very satisfied with the sound they produce.
A truly fine 12AU7 variant from the 1950's, many tube audiophiles feel these can outperform most other NOS 12AU7 tubes!
In computer (and some other) service, tubes were quite often operated as switches, biased to cutoff (no plate current) for long periods of time and then turned on, while always the heater and cathode were warmed up and ready to go.
In ordinary tubes, this leads to a condition known as "cathode interface resistance" or "sleeping sickness."
The cathode interface is a layer of metal, usually nickel, between the cathode sleeve and the oxide coating that emits electrons. In ordinary tubes, under conditions of long-duration tube cutoff, it generates a growing resistance until at last the cathode "goes to sleep."
Computer tube cathodes were specially treated to survive those long periods of cutoff without developing cathode interface resistance

[PDF]5963
www.r-type.org/pdfs/5963.pdf

[PDF]5963
https://frank.pocnet.net/sheets/049/5/5963.pdf
A great article on using computer tubes like the 5963 for audio use:
http://www.effectrode.com/tubes-computer-applications/

5963 tubes (12AU7 variants) from $35.00 each

G.E. short grey plates (1960's) @ $35.00 each
RCA grey short plates (1960's) @ $35.00 each
RCA black plates vintage(1950's)@ $35.00 each
HP/Amperex short plates (1960-70's(@ $35.00 each

Also have some Made-in the-USA 12AU7 black plate tubes in very good condition.
Very lightly used! (used/burned in for 10 hours)
Barely broken-in.
Usually sell for over $100.00 Cdn)
You can have them at $80.00/pair!

Selling off some more of my tube collection of 50 years!
This ad is for the very desirable triple mica version G.E. 5814A tubes
Made in USA.
These are an excellent upgrade variant for 12AU7 tubes,
The 5814A is equivalent to a 12AU7WA, it is ruggedized and redesigned
The filament current raised to 175ma per section versus 150ma per section for a 12AU7.
5814A are computer rated, 5814WA is ruggedized
Medium mu twin triode; high-rel, computer-rated variant of 12AU7, as indicated by A suffix; increased heater current.
Base: Noval, B9A
Filament: Vf 12.6 Volts / If 0.175 Ampere / Indirect / Parallel / series AC/DC
All 12AU7 tubes are rated Vhk=200V, 5814A tubes are rated Vhk=100V.
All tubes tested very strong on my B+K tester
Tubes all showed teat results between 2300 - 2450 where minimum on this tubes is 1175.
Brand new tubes usually measure around 2200.
No leaks or shorts.
Tubes are matched with 5%.
$90.00 a matched pair.
Or singles for $50.00

Local GTA pickup also welcomed.
Shipping is by Canada Post regular parcel,
Usually shipping cost is $18.00 per shipment anywhere in Canada.
Keep in mind that 1 - 4 tubes being shipped is the same cost as shipping only a single tube.
All tubes will be properly well bubble wrapped and packaged to ensure safe arrival to you!
Accepted payment is by; Cash/EMT/Canada Post money gram or orders
**FREE Shipping on all orders over $160.00

*As shipping costs to anywhere in Canada is $18.00 (for 1 - 4 tubes)
USD are higher in the United States, shipping is available to USA buyers at their expense,
which usually is $24.00 (for 1 - 4 tubes) to anywhere in the Continental USA

Will bubble wrap and pack most securely for safe arrival
Cash GTA Toronto pick-up is always welcome!
Cash/EMT/Canada Post or Bank money orders
If Paypal +4%

Please see my other ads
Thanks for looking!

ATTENTION all CAM member tube shoppers...
Finding the right tube for your amp/pre amp,you will find that there will be a lot of different opinions ....
Many times all the answers are right.
The complications can be is some tubes can be very system dependent so it will depend on your system as to which tubes sound the best.
We all desire quiet nice sounding tubes.
Why are some tubes noisier then others,or quieter in certain amps and not in others?
Audio tubes need to settle in and then will get better once burned in.
Definitely buy from a reputable dealers!
If you're going to be into tubes, its always beneficial to develop a relationship with dealers you can trust.
If you want to find the best sounding tube for your system and don't mind spending $$, then buy several brands/types and listen for yourself.
Each brand tends to feature characteristics that may appeal to you and match well with your unit, others not so much so there really isn't one 'best-sounding' tube out there as its very dependent on the application.
Also, while these super rare and uber-expensive tubes do sound great, they're best implementation is in sensitive pre amps and phono stages Remember, a good portion of their cost can be attributed to their scarcity, not just their sonics.
They really don't stand out in the usual amplifier's driver stage and in most other gear, a similar but substantially more common NOS tube of the same manufacturer will provide all but maybe the last 1% of the sonics of the super tubes at a much lower price.
Although improving, still many of the new tubes made today in Europe, China and Russia only reproduce random varied harmonics.
This can be why most of us upgrades to a vintage made tube made decades ago when these rare inner earth metals were available in the inside construction of the vintage tube.
These metals have become too expensive to use and today’s tube makers have found cheaper substitutes which seem to work but do not reproduce all the nuances and textures in music! ...

Selling off some more of my tube collection of 50 years!
This ad is for the very desirable triple mica version G.E. 5814A tubes
Made in USA
These are an excellent upgrade variant for 12AU7 tubes,
The 5814A is equivalent to a 12AU7WA, it is ruggedized and redesigned
The filament current raised to 175ma per section versus 150ma per section for a 12AU7.
5814A are computer rated, 5814WA is ruggedized
Medium mu twin triode; high-rel, computer-rated variant of 12AU7, as indicated by A suffix; increased heater current.
Base: Noval, B9A
Filament: Vf 12.6 Volts / If 0.175 Ampere / Indirect / Parallel / series AC/DC
All 12AU7 tubes are rated Vhk=200V, 5814A tubes are rated Vhk=100V.
All tubes tested very strong on my B+K tester
Tubes all showed teat results between 2300 - 2450 where minimum on this tubes is 1175.
Brand new tubes usually measure around 2200.
No leaks or shorts.
Tubes are matched with 5% or less!
$100.00 a matched pair.


Local GTA pickup also welcomed.
Shipping is by Canada Post regular parcel,
Usually shipping cost is $18.00 per shipment anywhere in Canada.
Keep in mind that 1 - 4 tubes being shipped is the same cost as shipping only a single tube.
All tubes will be properly well bubble wrapped and packaged to ensure safe arrival to you!
Accepted payment is by; Cash/EMT/Canada Post money gram or orders
**FREE Shipping on all orders over $160.00

*As shipping costs to anywhere in Canada is $18.00 (for 1 - 4 tubes)
USD are higher in the United States, shipping is available to USA buyers at their expense,
which usually is $24.00 (for 1 - 4 tubes) to anywhere in the Continental USA

Will bubble wrap and pack most securely for safe arrival
Cash GTA Toronto pick-up is always welcome!
Cash/EMT/Canada Post or Bank money orders
If Paypal +4%

Please see my other ads
Thanks for looking!

ATTENTION all CAM member tube shoppers...
Finding the right tube for your amp/pre amp,you will find that there will be a lot of different opinions ....
Many times all the answers are right.
The complications can be is some tubes can be very system dependent so it will depend on your system as to which tubes sound the best.
We all desire quiet nice sounding tubes.
Why are some tubes noisier then others,or quieter in certain amps and not in others?
Audio tubes need to settle in and then will get better once burned in.
Definitely buy from a reputable dealers!
If you're going to be into tubes, its always beneficial to develop a relationship with dealers you can trust.
If you want to find the best sounding tube for your system and don't mind spending $$, then buy several brands/types and listen for yourself.
Each brand tends to feature characteristics that may appeal to you and match well with your unit, others not so much so there really isn't one 'best-sounding' tube out there as its very dependent on the application.
Also, while these super rare and uber-expensive tubes do sound great, they're best implementation is in sensitive pre amps and phono stages Remember, a good portion of their cost can be attributed to their scarcity, not just their sonics.
They really don't stand out in the usual amplifier's driver stage and in most other gear, a similar but substantially more common NOS tube of the same manufacturer will provide all but maybe the last 1% of the sonics of the super tubes at a much lower price.
Although improving, still many of the new tubes made today in Europe, China and Russia only reproduce random varied harmonics.
This can be why most of us upgrades to a vintage made tube made decades ago when these rare inner earth metals were available in the inside construction of the vintage tube.
These metals have become too expensive to use and today’s tube makers have found cheaper substitutes which seem to work but do not reproduce all the nuances and textures in music! ...


Cash, EMT-Interac transfer preferred
Postal Money Order
PayPal buyer +4%


Additional Information:

Apr 17, 18 9:30am
Selling vintage 1960's single 5963 tubes
NOS (New old stock)
All were made in USA

No leaks or shorts
$50.00 each tube

Also have some very RARE NOS/NIB 6E5 General Electric tuning magic eye tubes
6E5 = VT-215 = 6Z-6E5 = UZ-6E5 = 6E5_Japan = CV1906
G.E. + WESTINGHOUSE TUBES Condition: NOS/NIB Never used!
Description:
Tube Type / Number: 6E5
Actual Brand*: G.E.
Quantity of Tubes: 6
Country of Manufacture: Canada
Year Made: Sept 1963
5960.21.100.3434
Lettering Condition: 80%
Plate Construction: Silver Ribbed
Getter Construction: Bottom
Number of Mica Spacers: 2
Mica Shape: U
Clear Glass
Engraved Base
(NIB) Original Boxes Included
$25.00 each or trade?

A Look At A NOS 6E5 Magic Eye Tube - YouTube
Video for 6e5 magic eye tube
▶ 14:37
https://www.youtube.com/watch?v=kgm6Kwi24KA



*Also have several 35W4 and 35Z5 GT half Wave Rectifier Tubes @ $12.00 each or trade ???

35Z5GT/G @ The Valve Museum
www.r-type.org/exhib/aaa0889.htm

Shipping to anywhere in Canada is $12.00 for each pair
Payable by: Cash,EMT, Paypal +4%

Jun 13, 18 10:03am
Selling vintage 1960's single 5963 tubes
NOS (New old stock)
All were made in USA

No leaks or shorts
$50.00 each tube

Also have some very RARE NOS/NIB 6E5 General Electric tuning magic eye tubes
6E5 = VT-215 = 6Z-6E5 = UZ-6E5 = 6E5_Japan = CV1906
G.E. + WESTINGHOUSE TUBES Condition: NOS/NIB Never used!
Description:
Tube Type / Number: 6E5
Actual Brand*: G.E.
Quantity of Tubes: 6
Country of Manufacture: Canada
Year Made: Sept 1963
5960.21.100.3434
Lettering Condition: 80%
Plate Construction: Silver Ribbed
Getter Construction: Bottom
Number of Mica Spacers: 2
Mica Shape: U
Clear Glass
Engraved Base
(NIB) Original Boxes Included
$25.00 each or trade?

A Look At A NOS 6E5 Magic Eye Tube - YouTube
Video for 6e5 magic eye tube
▶ 14:37
https://www.youtube.com/watch?v=kgm6Kwi24KA



*Also have several 35W4 and 35Z5 GT half Wave Rectifier Tubes @ $12.00 each or trade ???

35Z5GT/G @ The Valve Museum
www.r-type.org/exhib/aaa0889.htm

Shipping to anywhere in Canada is $16.00 for each pair
Payable by: Cash,EMT, Paypal +4%


I was informed by a moderator I cannot sell tubes individually unless I post a price for each.
So let's try it this way
Large lot of tubes for sale or trade
Will also sell individually.
Let me know what tube you require.



12 x 12AU7 Tubes @ $20.00 each

6 x 12AT7 Tubes @ $20.00 each

6 x 12BY7 Tubes @ $20.00 each

6 x 12AU6 Tubes @ $20.00 each

12 x 12AV6 Tubes @ $20.00 each

12 x 5963 Tubes @ $35.00 each


The 12AU7, 12BH7, and 6CG7 have very similar electrical characteristics and can usually be substituted for each other.

12AU7 is identical to a 6CG7 electrically and in the circuit it will function identically. However, there is a different heater pin out.
So if you are substituting you need to make a change.
In addition, the 6CG7 draws twice as much heater current so be sure that this will work in your circuit. (This may be one reason it is not as popular as it should be.)

12BH7 requires no circuit modification to substitute for a 12AU7, but the plate resistance is a little lower (5300 vs 7700).
Thus, even though it has a lower u (or amplification factor), the gain may be slightly higher depending on the circuit design.
[This is mainly true for circuits that use an anode resistor load.]
It will also draw a little more current, but the 12BH7 is a beefier tube and can handle it.
For most circuits this should be well within the tolerances of the design, but you can ask the manufacturer to be sure.
With respect to audio reproduction there is a fairly large difference between these three tubes.
The 6CG7 (or 6FQ7 which is the same exact tube) is identical in internal construction to the 6SN7. The 6SN7 has the reputation of being the most linear of the medium mu triodes and the 6CG7 follows suit.
Also, the 6CG7 line is remarkably similar in audio performance across various manufacturers of the same vintage or age.
It is a good tube for early or middle stage amplification and has the added bonus of a grounded shield between sections, which reduces hum and increases channel separation.

The 12BH7 can lend a wonderful life to the tone that sounds great for jazz or vocals. For audio listening, this tube can temper the harshness of CD's.
There is, however, a wider variation in the sound of 12BH7s than 6CG7s, so some tube selection or rolling is in order.
You can find very neutral 12BH7s (watch for a coming blog comparing them) . If you don't want to modify the circuit and are unhappy with your 12AU7--this is a good choice.

The 12AU7 family has the widest variety of tonal characteristics which is probably why this tube is rolled so often by audiophiles.
Personally I find some 12AU7s a little tinny in comparison with the 12BH7 and 6CG7, but there are exceptions,such as 5963 tubes!

Part of the fun and magic of tubes is rolling them when listening to different types of music.

All single tubes from $20.00 each
Tubes are bubble wrapped and securely well packaged for shipping!
Payment is only by;EMT Interac money transfers, Cash,Canada Post money gram/orders



**Please read my CAM profile re: shipping policies


Many vintage pairs of 12AT7 + and 12BY7 tubes @ $50.00 a pair!

HP-AMPEREX*G.E.*PHILIPS*RCA*ROGERS*SYLVANIA*WESTINGHOUSE

All tubes have tested very good!
No leaks or shorts

Many pairs of 12AT7 + 12BY7 vintage tubes available

If you are going to roll pairs in your Amp / Pre amp then these are the tubes for you!

All testing very good and most were never used and as good as new!

$90.00 for all (10) tubes

(*Less then $10.00 a tube!)


Also have matching pairs of:

A pair of 5963-------70.00
A pair of 12AU7-----60.00
A pair of 6ML8------30.00
A pair of 6AN8------ 60.00
A pair of 6BL8-------30.00
A pair of 6AU8-------30.00
A pair of 6GH8-------30.00
A pair of 6U8A-------30.00
A pair of 6AT6A----- 40.00
A pair of 6AT8A----- 40.00


I also have many more tubes then I need
Most of these tubes for vintage amps,pre-amps,tuners testers and other vintage gear. All tubes have been recently tested using a Jackson 658 tester,and all these have no leaks/shorts!
All tubes are NOS,some are also NIB
Kindly email me for any information and for prices.


Current updated list of available tubes:

0B2 Philips Mini Watt
0C3
4BQ7A
6AQ5
6AQ8
6BQ7A
6BQ5/EL84
6AX8
6BN6
6AU6
6AV6
6BN4A
5763
5963
6H1N
6C4
6X4
6X9
6X8
6AL5
6AK6
6AN8A
6AU8A
6CY5
6AT8A
6U8A
6GH8A
6SN7
8X9
ECH81
12BY7A
12BA6
12BE6
12AU7
12AT7
12SN7
GB-5726
6BN8
6BG6GTB
6CU6
12AH7GT
EF86
EF89
6DA6
13EM7
50BM8
UCL82 ROGERS
6J6 / ECC91 / 6N15P RUSSIAN NOS
JAN 0A3 WESTINGHOUSE NOS
JAN 0C3 VR105 NOS

Local GTA Toronto pickup welcomed.
Shipping is by Canada Post regular parcel
All orders of 4 or more tubes is free to anywhere in Canada!
All tubes will be properly well wrapped,packed and bubble-wrapped boxed.

If you are going to roll pairs in your Amp / Pre amp then these are the tubes for you!

All testing very good and most were never used and as good as new!
Tubes are bubble wrapped and securely well packaged for shipping!
Payment is only by;EMT Interac money transfers, Cash,Canada Post money gram/orders
For shipping add $18.00 per packed parcel
Free shipping is included to any where in Canada with any purchase of $160.00 or more!
**Please read my CAM profile re: shipping policies

Jul 10, 18 7:30am
Branded Baldwin organ grade 12au7 white and yellow print organ grade very musical tubes!
All have been tested with a B+K calibrated tube tester
Baldwin organ grade vacuum tubes
$50 a pair
$90 a quad
White stamped labels
All tested and fully operational.
Super Strong!.
Including shipping to anywhere in Canada

The 12AU7 is a miniature medium-mu twin triode.
This tube finds use as a phase-inverter/splitter in push-pull amplifier circuits in ac/dc radio equipment and in many diversified applications such as multivibrators or oscillators in industrial control devices.
The tube is quite pokey and sections can even be connected in parallel to create a power amp with enough current to drive a pair of headphones or even a guitar speaker.
A centre tapped heater permits operation of the tube from a 6.3V or a 12.6V heater supply.
The tube requires a noval nine-contact socket and may be mounted in any position.

DOUBLE TRIODE (separate cathodes)
Heater Voltage 6.3-12 V
Heater Current 300-150 mA
Plate Voltage 250 V
Plate Current 10.5 mA
Plate Resistance 7700 Ω
Amplification Factor (μ) 20
Plate Dissipation (max) 2.75 W
B9A pinout

Also have many top of the line variants 12AU7 / ECC82 tubes
5814A / 6680 / 6189 /6189 / 5963 tubes are all an upgrade/military grade variants of 12AU7's
G.E / Heathkit / RCA / JAN ROGERS / TUNG-SOL / WESTINGHOUSE
All test very strong
No shorts or gas leaks!
Price is $60.00 a matched pair!
Shipping to anywhere in Canada is available
Tubes are bubble wrapped and securely well packaged for shipping!
Payment is only by;EMT Interac money transfers, Cash,Canada Post money gram/orders


ATTENTION all CAM member tube shoppers...
Finding the right tube for your amp/pre amp,you will find that there will be a lot of different opinions ....
Many times all the answers are right.
The complications can be is some tubes can be very system dependent so it will depend on your system as to which tubes sound the best.
We all desire quiet nice sounding tubes.
Why are some tubes noisier then others,or quieter in certain amps and not in others?
Audio tubes need to settle in and then will get better once burned in.
Definitely buy from a reputable dealers!
If you're going to be into tubes, its always beneficial to develop a relationship with dealers you can trust.
If you want to find the best sounding tube for your system and don't mind spending $$, then buy several brands/types and listen for yourself.
Each brand tends to feature characteristics that may appeal to you and match well with your unit, others not so much so there really isn't one 'best-sounding' tube out there as its very dependent on the application.
Also, while these super rare and uber-expensive tubes do sound great, they're best implementation is in sensitive pre amps and phono stages Remember, a good portion of their cost can be attributed to their scarcity, not just their sonics.
They really don't stand out in the usual amplifier's driver stage and in most other gear, a similar but substantially more common NOS tube of the same manufacturer will provide all but maybe the last 1% of the sonics of the super tubes at a much lower price.
Although improving, still many of the new tubes made today in Europe, China and Russia only reproduce random varied harmonics.
This can be why most of us upgrades to a vintage made tube made decades ago when these rare inner earth metals were available in the inside construction of the vintage tube.
These metals have become too expensive to use and today’s tube makers have found cheaper substitutes which seem to work but do not reproduce all the nuances and textures in music! ...


Additional Information:
Jun 01, 18 11:34pm
Clearing out many assorted brands of vintage 1950 -60's
ECC82 / 12AU7 + ECC83 / 12AX7 ECC81 / 12AT7 tubes
Black + Grey Long/Short Plates are available
Mostly are G.E. / Marconi / Raytheon / RCA / Sylvania / Westinghouse
Both short or long grey + black plates are available.
Test strong like new with very closely matched sections.
All have had very little use.
Lettering and logo prints are all excellent!
All these vintage tubes still do test very strong, like new /very close!
All tubes have been tested twice on my mutual conductance calibrated B+K tester
They will test at or close to new.
No gas leaks or shorts.
Each shipped tube is bubble wrapped and well boxed!
Price is @ $25.00 per tube !
Cash, EMT, Canada Post Money orders preferred
PayPal + 4%
1-4 tubes are the same $19.00 shipping cost by Canada Post regular parcel service at buyer's expense
*All orders of $160.00 or more will be shipped Free to anywhere in Canada!


Jul 22, 18 10:33am
Selling off some more of my tube collection of 50 years!
This ad is for the very desirable triple mica version G.E. 5814A tubes
Made in USA
These are an excellent upgrade variant for 12AU7 tubes,
The 5814A is equivalent to a 12AU7WA, it is ruggedized and redesigned
The filament current raised to 175ma per section versus 150ma per section for a 12AU7.
5814A are computer rated, 5814WA is ruggedized
Medium mu twin triode; high-rel, computer-rated variant of 12AU7, as indicated by A suffix; increased heater current.
Base: Noval, B9A
Filament: Vf 12.6 Volts / If 0.175 Ampere / Indirect / Parallel / series AC/DC
All 12AU7 tubes are rated Vhk=200V, 5814A tubes are rated Vhk=100V.
All tubes tested very strong on my B+K tester
Tubes all showed teat results between 2300 - 2450 where minimum on this tubes is 1175.
Brand new tubes usually measure around 2200.
No leaks or shorts.
Tubes are matched with 5% or less!
$90.00 a matched pair.

Also have Branded Baldwin organ grade 12au7 white and yellow print organ grade very musical tubes!
All have been tested with a B+K calibrated tube tester
Baldwin organ grade vacuum tubes
$60 a pair
$90 a quad
White stamped labels
All tested and fully operational.
Super Strong!.
Including shipping to anywhere in Canada

The 12AU7 is a miniature medium-mu twin triode.
This tube finds use as a phase-inverter/splitter in push-pull amplifier circuits in ac/dc radio equipment and in many diversified applications such as multivibrators or oscillators in industrial control devices.
The tube is quite pokey and sections can even be connected in parallel to create a power amp with enough current to drive a pair of headphones or even a guitar speaker.
A centre tapped heater permits operation of the tube from a 6.3V or a 12.6V heater supply.
The tube requires a noval nine-contact socket and may be mounted in any position.

DOUBLE TRIODE (separate cathodes)
Heater Voltage 6.3-12 V
Heater Current 300-150 mA
Plate Voltage 250 V
Plate Current 10.5 mA
Plate Resistance 7700 Ω
Amplification Factor (μ) 20
Plate Dissipation (max) 2.75 W
B9A pinout

Also have many top of the line variants 12AU7 / ECC82 tubes
5814A / 6680 / 6189 /6189 / 5963 tubes are all an upgrade/military grade variants of 12AU7's
G.E / Heathkit / RCA / JAN ROGERS / TUNG-SOL / WESTINGHOUSE
All test very strong
No shorts or gas leaks!
Price is $60.00 a matched pair!
Shipping to anywhere in Canada is available
Tubes are bubble wrapped and securely well packaged for shipping!
Payment is only by;EMT Interac money transfers, Cash,Canada Post money gram/orders


ATTENTION all CAM member tube shoppers...
Finding the right tube for your amp/pre amp,you will find that there will be a lot of different opinions ....
Many times all the answers are right.
The complications can be is some tubes can be very system dependent so it will depend on your system as to which tubes sound the best.
We all desire quiet nice sounding tubes.
Why are some tubes noisier then others,or quieter in certain amps and not in others?
Audio tubes need to settle in and then will get better once burned in.
Definitely buy from a reputable dealers!
If you're going to be into tubes, its always beneficial to develop a relationship with dealers you can trust.
If you want to find the best sounding tube for your system and don't mind spending $$, then buy several brands/types and listen for yourself.
Each brand tends to feature characteristics that may appeal to you and match well with your unit, others not so much so there really isn't one 'best-sounding' tube out there as its very dependent on the application.
Also, while these super rare and uber-expensive tubes do sound great, they're best implementation is in sensitive pre amps and phono stages Remember, a good portion of their cost can be attributed to their scarcity, not just their sonics.
They really don't stand out in the usual amplifier's driver stage and in most other gear, a similar but substantially more common NOS tube of the same manufacturer will provide all but maybe the last 1% of the sonics of the super tubes at a much lower price.
Although improving, still many of the new tubes made today in Europe, China and Russia only reproduce random varied harmonics.
This can be why most of us upgrades to a vintage made tube made decades ago when these rare inner earth metals were available in the inside construction of the vintage tube.
These metals have become too expensive to use and today’s tube makers have found cheaper substitutes which seem to work but do not reproduce all the nuances and textures in music! ...


Also clearing out many assorted brands of vintage 1950 -60's
ECC82 / 12AU7 + ECC83 / 12AX7 ECC81 / 12AT7 tubes
Black + Grey Long/Short Plates are available
Mostly are G.E. / Marconi / Raytheon / RCA / Sylvania / Westinghouse
Both short or long grey + black plates are available.
Test strong like new with very closely matched sections.
All have had very little use.
Lettering and logo prints are all excellent!
All these vintage tubes still do test very strong, like new /very close!
All tubes have been tested twice on my mutual conductance calibrated B+K tester
They will test at or close to new.
No gas leaks or shorts.
Each shipped tube is bubble wrapped and well boxed!
Price is @ $60.00 per matched pair !
Cash, EMT, Canada Post Money orders preferred
PayPal + 4%
1-4 tubes are the same $19.00 shipping cost by Canada Post regular parcel service at buyer's expense
*All orders of $160.00 or more will be shipped Free to anywhere in Canada!


Local GTA pickup also welcomed.
Shipping is by Canada Post regular parcel,
Usually shipping cost is $18.00 per shipment anywhere in Canada.
Keep in mind that 1 - 4 tubes being shipped is the same cost as shipping only a single tube.
All tubes will be properly well bubble wrapped and packaged to ensure safe arrival to you!
Accepted payment is by; Cash/EMT/Canada Post money gram or orders
**FREE Shipping on all orders over $160.00

*As shipping costs to anywhere in Canada is $18.00 (for 1 - 4 tubes)
USD are higher in the United States, shipping is available to USA buyers at their expense,
which usually is $24.00 (for 1 - 4 tubes) to anywhere in the Continental USA

Will bubble wrap and pack most securely for safe arrival
Cash GTA Toronto pick-up is always welcome!
Cash/EMT/Canada Post or Bank money orders
If Paypal +4%

Please see my other ads
Thanks for looking!

ATTENTION all CAM member tube shoppers...
Finding the right tube for your amp/pre amp,you will find that there will be a lot of different opinions ....
Many times all the answers are right.
The complications can be is some tubes can be very system dependent so it will depend on your system as to which tubes sound the best.
We all desire quiet nice sounding tubes.
Why are some tubes noisier then others,or quieter in certain amps and not in others?
Audio tubes need to settle in and then will get better once burned in.
Definitely buy from a reputable dealers!
If you're going to be into tubes, its always beneficial to develop a relationship with dealers you can trust.
If you want to find the best sounding tube for your system and don't mind spending $$, then buy several brands/types and listen for yourself.
Each brand tends to feature characteristics that may appeal to you and match well with your unit, others not so much so there really isn't one 'best-sounding' tube out there as its very dependent on the application.
Also, while these super rare and uber-expensive tubes do sound great, they're best implementation is in sensitive pre amps and phono stages Remember, a good portion of their cost can be attributed to their scarcity, not just their sonics.
They really don't stand out in the usual amplifier's driver stage and in most other gear, a similar but substantially more common NOS tube of the same manufacturer will provide all but maybe the last 1% of the sonics of the super tubes at a much lower price.
Although improving, still many of the new tubes made today in Europe, China and Russia only reproduce random varied harmonics.
This can be why most of us upgrades to a vintage made tube made decades ago when these rare inner earth metals were available in the inside construction of the vintage tube.
These metals have become too expensive to use and today’s tube makers have found cheaper substitutes which seem to work but do not reproduce all the nuances and textures in music! ...

All Tubes have been tested twice showing very strong (on a B+K and also on a Western Electric KS-5727-L1 tube testers)

No gas leaks or shorts.


Payment is by: Cash, Interac-EMT, Canada Post Money Orders only on all shipping orders.
Paypal +4%
Cash on local GTA pickup is available at Finch-Dufferin, North York Toronto M2R 3W1

*Free shipping is included to anywhere in Canada on orders of $160.00 or more!

Please see my other ads for more excellent vintage audio vacuum tubes
All tube orders will be bubble wrapped and boxed, will be properly packed and marked FRAGILE to arrive very safe!

Shipping by Canada Post regular parcel


Thanks for looking.
**Please see my CAM ads

Jul 22, 18 10:34am
Several 12AT7 ECC81 Black Plate tubes

Some of nicest sounding 12AT7 tubes every made and with their strong construction will continue to sound great for a very long time.
Tube shows the trademark which has acid etched codes so you know it's are for real.
This tube is in excellent condition and has never been used!
Military grade tubes are built sturdier than non-military types.
Some of the last ones left, these are great sounding tubes with that old British heritage.
Superb sonics and balanced sections make this an ideal upgrade replacement tube for Fender amps, vintage and current hi-fi amps and boutique guitar amps.
Super durable with long life.
Amazing sound, deep bass and articulated highs with that famous Mullard Sweetness and warmth!

Tubes tested on a rebuilt, recently calibrated B&K tube tester.
All tubes are NOS/NIB and test as such with no leaks or shorts.
1-4 tubes are the same shipping cost which is by Canada Post regular parcel service,
and is usually $15.00 to anywhere in Canada.
Minimum order is $50.00 or more
Any purchase over $160.00 and shipping is on me!
All tubes will be very well packed and wrapped with bubble wrap!
Local GTA pickup also welcome.
Accepted payment is by; Cash/EMT/Canada Post money gram or orders
Thanks for looking.

It's probably one of the most misunderstood things about vacuum tubes:
The name on the tube is the company that made it right?
Well actually the answer is No - and that's why it can be so confusing.

The tube making giants of the 1940's, 50's and 60's were Amperex / Mullard / Philips / RCA / Sylvania and GE ( General Electric ) to name most but certainly not all.
While it's true that they made tubes with their company name on the glass - the bulk of their production was devoted to making tubes under contract for other companies.

Remember the Zenith TV your family had in the living room back in the 70's?
All the tubes inside were labelled Zenith and Only Replace with Genuine Zenith Tubes.
Brilliant marketing but somewhat deceiving since Zenith didn't make tubes.
They bought them in bulk from GE and Sylvania and the supply contracts required that the tubes were labelled Zenith.
The public didn't know that - it made sense to replace a Zenith tube with a Zenith tube.
Zenith knew that other brands could be used instead but they were protecting their repeat business.

This is just one example - multiply it by the 100's of other companies making TV's, organs, radio receivers, amplifiers, medical / test equipment and you can see how confusing this became.
All those different names on the glass but still only a handful of companies making tubes.

So how do you know who made a tube?
Learn to read the production codes - not the brand names.
Each tube will have markings which show two things - the company that made it and when it was made.
Once you learn these codes it makes tube identification easy and allows you to find good deals.
There are a lot of good resources on the web that will teach you about production / date codes

Also have several 12AX7 tubes made by Philips Amperex: some labelled for Rogers or Electrohome and the 1st one as an Amperex Bugle Boy. Guess what? They all sound the same. Why?
Because they were made on the same assembly line, using the same materials and method of construction and with the same testing afterwards.
If Amperex made the tube it's going to sound like an Amperex tube.

Just like Johnnie Walker scotch tastes like Johnnie Walker scotch regardless if it was packaged in the familiar bottles or a glass mason jar.

The only difference is the tube on the far left will sell for double the price - because it has the Bugle Boy logo.
We've been brought up to think that the label on the outside is the most important factor and that simply isn't the case.
The label means nothing - who made the tube is what your ears hear.

The Mullard / Amperex / Philips 12AX7 that have someone elses name on the glass but still give you all the tone you expect from these companies.

Thanks for your time - hope you've found this helpful!




Also have several vintage Philips Amperex stamped Electrohome Organ Grade 7025A Tubes
Labelled Electrohome 7025 + 7025A these are the low noise version of a ECC84 / 12AX7
Most are factory double screened
Excellent tubes for tube amps, phono sections and pre amps

All tubes have been tested and are very strong
No gas or shorts

From $45.00 each
$80.00 for matched pairs
$150.00 for quads

Payment is by: Cash, Interac-EMT, Canada Post Money Orders only on all shipping orders.
Cash on local GTA pickup
Will ship to anywhere in Canada.

For orders less then or under $160.00 shipping is $20.00 for 1- 4 tubes to anywhere in Canada at buyers expense

Free shipping with all purchases of $160.00 or more, shipping to anywhere in Canada is on me!

Tubes will be bubble-wrapped and well packaged,and will arrive very safe!

Please see my other ads for more excellent vintage audio vacuum tubes
**Please read my CAM profile re: shipping policies






Canuck Audio Mart is FREE!

Forum Messages

Announcements

Dealer News

Ad Stats

  • Last 48 hrs: 318
  • Active: 7826
  • Total: 644154

Replies Stats

  • Last 48 hrs: 565
  • Total: 1313632
    (since Nov 25th, 2004)

Info