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FOR SALE: Baldwin Organ Grade 12AU7 Tubes

Item #649440875
Info: Baldwin Organ Grade 12AU7 Tubes

Asking Price:
CAD $50.00
Payment method: Cash, Paypal, Money Order, Money Wire, Interac/EMT
Condition: 8 - Very good (?)
Date Posted: Aug 02, 18 7:31am (PST)
About Seller: David Dov
David Dov is a premium user
North York,Toronto, ON
Canada
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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! ...


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...

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 HP 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%.


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%

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

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%

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!
$90.00 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! ...
NOS/NIB Vintage RCA EZ81 / 6CA4 rectifier tubes (Never used)
All tubes are in the original boxes NOS NIB.
Vintage 6CA4 (EZ81) rectifier tubes for amps like Eico, Scott, Dynaco
All tubes test as new with no leaks or shorts
All test very strong like new (never used)
All tubes test as new with no leaks or shorts
These are getting a little harder to find now especially New Old Stock
These are good for Eico/Dynaco/Scott,etc....
Vintage NOS/NIB RCA EZ81 - 6CA4 tube rectifiers + many other vintage tubes
ALSO Selling vintage 1960 - 70's single 5963 + many other tubes
Vintage NOS/NIB RCA EZ81 - 6CA4 tube rectifiers + many other vintage tubes
Vintage NOS/NIB RCA EZ81 - 6CA4 tube rectifiers + many other vintage tubes
Vintage NOS/NIB RCA EZ81 - 6CA4 tube rectifiers + many other vintage tubes
$35.00 each + shipping

4 x Marconi 6AV5 GA Output tubes @ $20.00 per each tube

Also have 5AR4 / GZ34 Rectifier Fat Boy tubes!
Tests like new, has big grey plates and were originally branded PHILIPS, RCA or SYLVANIA
These rectifiers can allow the amp a very zippy response with lots of "push" behind the note, with the sensation that the note is more "forward." This tube makes a huge difference in the performance of your amp!
This version of the 5AR4 has a very large glass envelope like a 6L6GC, hence where it got the "Fat Boy" name
These tubes have a most sweet and warm snappy sound, with amazing power!
$100.00 each with shipping included to anywhere in Canada!
Payable by EMT
PayPal + 4%

Also a Marconi (Western Electric) 5R4GY USA NOS NIB.
Very rare coke bottle shaped tube
Excellent condition.
Tested on my calibrated B&K
Good from 65
Tube Tests = 95/100
Free shipping included to anywhere in Canada
$79.99
Payable by Cash, EMT,
Paypal +4%

EMT / Canada Post money orders or cash
If Paypal +4%

Local GTA pickup also welcomed.
Accepted payment is by; Cash / EMT Interac Transfer / Canada Post money gram or orders
No exchange or refunds
Thanks most kindly for looking!

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

Please see my other ads
Thanks for looking!


Additional Information:

Jun 01, 18 8:34pm
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 27, 18 10:56am
Vintage 1960's Mullard tubes.
Vintage 1960's Mullard EL84 6BQ5 Output Tubes @ $200.00 / Quad
4 Mullard Blackburn EL84 / 6BQ5 tubes @ $200.00/Quad

They all test strong (over 100-120) on my B+K Tube Tester.
No shorts, emissions gas leaks.

*Also have some other vintage 1950-60's EL84 tubes available from $180.00 per quad includes shipping to anywhere in Canada!

The $180.00 price includes shipping to Canadian destinations

4 Vintage Brimar made in England EL84 6BQ5 output tubes

Brimar tubes are right up there with the Mullards

The pins have been straightened

Tested on my B+K tester with a min good reading of 70

These tested 110 108 112 107

EMT or cash

Quads:

- FUNKWERK (GERMAN) Quad $180.00

- RFT (GERMAN) Quad $180.00

- Vintage British Blackburn made MULLARDS $180.00/ Quad

Please let me know what you need?


GTA Toronto CASH pick-up is always welcome!

I will pack most securely with bubble wrap and boxed for safe arrival.

Cash/EMT/Canada Post money order grams preferred


*Price includes shipping to anywhere in Canada

Payable by EMT, Cash, Canada Post Money Orders

CASH / EMT / CANADA POST MONEY GRAMS

Please let me know what you need?
Shipping available at buyers expense which usually is $18.00 for 1 -4 tubes to anywhere in Canada
*FREE SHIPPING on all orders of $160.00 or more!

GTA Toronto CASH pick-up is always welcome!

I will pack most securely with bubble wrap and boxed for safe arrival.

Cash/EMT/Canada Post money order grams preferred

All tubes show very strong full life left readings!
Tubes tested on my B+K mutual conductance tester
No shorts or leaks
All tube show stamps of Made in Great Britain.
Can ship.


Most of these tubes for vintage amps,pre-amps,tuners,tube testers and other vintage tube gear.
All tubes have been recently tested good and strong using a B+K tube tester
No leaks/shorts!
Many tubes are NOS,some are also NIB
Kindly email me for any information



5Y3
5V4
6C4
6X9
6X8
6X4
6X8
6N7
8X9
6CB6A
6CB6
E83F
6AL5
6CY5 / 7717
4BQ7
5763
6C4
6V4
6X4
6X8
6X9
6U8
6GH8
6AB8
6AL5
6AT6
6AT8
6AB4
6AU6
6AV6
6BA6
6BE6
6BN8
6CY5
6CA4-EZ81
6AQ5
6AQ7
6AT6
6AT8
6AM8
6BL8
6BQ7
6BU8
EF86 -6267
EF89-6DA6
12BA6
12AU6
12AV6
12BE6
12BY7
12BH7
12AU6
12AV6
12AU7
12AT7
12BA6
12BE6
12BY7
6AQ5
EL84
6AQ8
6BQ7A
6AX8
6BN6
6AU6
6BN4A
5763
6H1N
6AL5
6AK6
6AN8A
6AU8A
6CY5
6AT8A
6U8A
6GH8A
ECH81
12AU7
12AT7
12AX7
12BH7A
12BY7A
12BA6
12BE6
12AU7
12AT7
GB-5726
0B2
10CV/2980 ( eye")
6BN8
6BQ6GTB
6CU6
12AH7GT
6DA6
13EM7
50BM8
UCL82 ROGERS
6J6 / ECC91 / 6N15P RUSSIAN NOS
JAN 0C3 VR105 NOS
+ many more....
If you are looking for a inexpensive great tubes,let me know what you need...
Most tubes are from $10.00 each and up....
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

Cash GTA Toronto pick-up is always welcome!

I will pack most securely for safe arrival.

Cash/EMT/Paypal/Canada Post or Bank money orders
Thanks for looking!


Who else is of the opinion that the 12BH7 will sound better than the 12AU7?

Using 12AU7 in the input wasn't as clean sounding as are the 12BH7 or 6FQ7/6CG7.
Depending on the pre amp using 12BH7 in the input was nice but the 6FQ7/6CG7 was even better.
All most every circuit where I subbed a 12BH7 in for a 12AU7 the sound has improved.
Some excellent sounding 12BH7A tubes are:
Sylvania with green yellow print
RCA black plate or even better are the charcoal plate (non shiny black plate)
Raytheon 1958 BP

You may want to watch the heater current though on some units,
given the design was intended for 12AU7 but other then that they run the same circuits.
Typical 12AU7's are in the 100-200V range (except for the 5963: 60-70V)
12BH7
TWIN TRIODE
www.op316.com/tubes/mw/image/12bh7age.pdf

With so many 12AU7 variants out there (only the 12AX7 has more variants)
Here are some very good references on the types of 12AU7 tubes available:
They include:
12AU7
12AU7A
5814 (If you can find the CBS Hytron 5818, do try them!!!)
5963
6189
ECC82
ECC802
There are others, too - and that's not even counting the variance among brands.
Even then, there are "triple-mica's," different style getters, 5 Stars, JAN's, and many other brands.
I must have about 2 dozen different 12AU7-type tubes, and only 2-3 are actually 12AU7's
These tubes all have different flavors and the bottom line is to use whatever sounds good to you no matter what the opinions of others

Available 12BH7 Black Long Plate Tubes:
-G.E.
-Sylvania
-RCA

Here's a brief list of some audio useful loctals, and their octal equivalent:

7A4 - loctal 6J5 (1/2 of a 6SN7GT)

7AF7 - mu of 16.5, very similar otherwise to a 6SN7 or 6CG7/6FQ7

7B5 - loctal 6K6

7C5 - loctal 6V6GT

7C7 - loctal 6SJ7 (or really close to it!)

7F7 - loctal 6SL7

7F8 - no equivalent, mu of 48, rp of 3300, twin VHF triode, used by jc morrison in his "Siren Song" preamp
as written up in Sound Practices.

7N7 - loctal 6SN7GT

7Z4 - fullwave indirectly heated rectifier, a bit more current capability (100ma./plate) than a 6V4/EZ80. Probably
make a nice preamp rectifier!

All the tubes above use 6.3 volts on the heaters!

Another possibility is the 14XXX series of loctals. Almost all the tubes above are available in 12.6 volt versions. There
is no 14B5 or 14Z4 though.
By using a 7F7 voltage amp, a 7N7 or 7AF7 phase splitter, and a pair of 7C5s as outputs, you can make a nice
push-pull all loctal amplifier! You can use a 7Z4 rectifiers if you don't go SS!

I have many of these tubes in stock, drop me a note if you are interested!

Jan 12, 18 12:26am
*More available tubes:



If you are looking for a inexpensive great tubes,let me know what you need...
Most tubes are from $10.00 each and up....
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

Cash GTA Toronto pick-up is always welcome!

I will pack most securely for safe arrival.

Cash/EMT/Paypal/Canada Post or Bank money orders
Thanks for looking!


Tubes from $15.00 each
Please contact for quantity + prices
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 $18.00 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


Time to clear out some more tubes!

12AT7 @ $25.00 each!!!

BALDWIN / GE / RCA / ROGERS / SYLVANIA


GTA Toronto CASH pick-up is always welcome!

Bubble wrapped and boxed to allow most securely packaged for safe arrival.
Tested on my B+K tube tester with all good strong readings
No gas or shorts

Shipping available at buyers expense which usually is $20.00/Quad to anywhere in Canada
Payment is only by;Cash,Canada Post money gram/orders,EMT/money transfers are preferred.
For shipping add 18.00 on orders less then $150.00
*Free shipping on orders of $160.00 or more!

Also have any single 12AX7 / 12AU7/ 12AT7 tubes
All have testing good. No issues.
Selling all single tubes from $20.00

Shipping for 1 -4 tubes adds $18.00 to anywhere in Canada

Have a few 5751 low gain 12AX7 variant tubes
GE 5751
No leaks or shorts.
Have all tested very strong


I have a lot of many different tubes having been collecting for over 50 years
Many 12AU7 / 12AT7 / 12AX7 / 12AV6 / 12AU6 / 12BY7 / 12BH7 / 12BA6 / 12BE6......and many more older tubes from a caddy
All have tested very strong,without gas shorts or leaks!
Currently I have 12AX7 organ grade Philips Amperex branded Electrohome
Also have some 12AX7 Hammonds and British Mullards
Some 12AT7 Black Plates
Many tubes are from $25.00 and up each
Let me know what you require?

A lot of audio vacuum tubes for sale
All tubes are testing good+strong.
All tubes in very good condition.
Some never used,some were slightly used
No issues.

Tube List:
Current updated list of available tubes sold as a lot deal for all:

0C3
0B2 Philips Mini Watt
12SA7
50L6
35L6
6SJ7
7AF7
7A7
7B7
7B8
7C5
7C7
6C4
6V4
6X4
6W4
6X8
8X9
4BQ7
6AB8
6AK5
6AL5
6AM8
6AQ5
6AQ7
6AU8
6AT6
6AT8
6BA6
6BE6
6BL8
6BM8
6ML8
6BN6
6BN8
6BY7
6CA4
6GH8
6CY5
6267
12BH7
12BY7
12SN7
0A2
0C3
0B2 Philips Mini Watt
6AL5
6ALK
6AU8
6AT6
6AB8
6BN8
6BY7
6V4
6X4
6X8
6X9
6C4
6CA4
6CY5
6267
6V6GT
8X9
12SA7
50L6
35L6
6SJ7
7AF7
7A7
7B7
7B8
7C5
7C7
7N7
5Y3
5V4
6C4
6X9
6X8
6X4
6X8
6N7
8X9
6CB6A
6CB6
E83F
6CY5 / 7717
12AU6
12AV6
12AU7
12AT7
12BA6
12BE6
12BH7
12BY7
6AQ5
6AQ8
6BQ7A
6AX8
6BN6
6AU6
6BN4A
5763
6H1N
6AL5
6AK6
6AN8A
6AU8A
6CY5
12BA6
12BE6
12AU7
12AT7
10CV/2980 ( eye")
6BN8
6BQ6GTB
6CU6
12AH7GT
6DA6
13EM7
50BM8
UCL82 ROGERS
6J6 / ECC91 / 6N15P RUSSIAN NOS
JAN 0C3 VR105 NOS
+ many more....
From $10.00 each tube
Please contact for quantity+ prices
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.
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


Please contact for quantity+ prices
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

(4) 12AV5 tubes @ $25.00 each

Payment is by Cash / EMT / Canada Post money orders
If Paypal +4%
*Shipping is availabe to anywhere in Canada (1-4 tubes usually is under $20.00)
Local GTA pickup also welcomed.
Thanks most kindly for looking!


Here's a brief list of some audio useful loctals, and their octal equivalent:

7A4 - loctal 6J5 (1/2 of a 6SN7GT)

7AF7 - mu of 16.5, very similar otherwise to a 6SN7 or 6CG7/6FQ7

7B5 - loctal 6K6

7C5 - loctal 6V6GT

7C7 - loctal 6SJ7 (or really close to it!)

7F7 - loctal 6SL7

7F8 - no equivalent, mu of 48, rp of 3300, twin VHF triode, used by jc morrison in his "Siren Song" preamp
as written up in Sound Practices.

7N7 - loctal 6SN7GT

7Z4 - fullwave indirectly heated rectifier, a bit more current capability (100ma./plate) than a 6V4/EZ80. Probably
make a nice preamp rectifier!

All the tubes above use 6.3 volts on the heaters!

Another possibility is the 14XXX series of loctals. Almost all the tubes above are available in 12.6 volt versions. There
is no 14B5 or 14Z4 though.
By using a 7F7 voltage amp, a 7N7 or 7AF7 phase splitter, and a pair of 7C5s as outputs, you can make a nice
push-pull all loctal amplifier! You can use a 7Z4 rectifiers if you don't go SS!

I have many of these tubes in stock, drop me a note if you are interested!

A lot of audio vacuum tubes for sale
All tubes are testing good+strong.
All tubes in very good condition.
Some never used,some were slightly used
No issues.

Tube List:

6C4
6V4
6X4
6W4
6X8
8X9
4BQ7
6AB8
6AK5
6AL5
6AM8
6AQ5
6AQ7
6AU8
6AT6
6AT8
6BA6
6BE6
6BL8
6BM8
6ML8
6BN6
6BN8
6BY7
6CA4
6GH8
6CY5
6267
6V6GT
6FQ7
6NS7
6SL7
12BY7
12SN7

From $10.00 each tube
Please contact for quantity+ prices
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.
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


Please contact for quantity+ prices
Payment is by: Cash, Interac-EMT, Canada Post Money Orders only on all shipping orders.



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