> Classifieds > > > 12AT7-ECC81 / 12AU7-ECC82 / 12AX7-ECC83 Tubes @ $25.00

FOR SALE or TRADE: 12AT7-ECC81 / 12AU7-ECC82 / 12AX7-ECC83 Tubes @ $25.00

Item #649330777
Info: 12AT7-ECC81 / 12AU7-ECC82 / 12AX7-ECC83 Tubes @ $25.00

Asking Price:
CAD $25.00
Payment method: Cash, Money Order, Money Wire, Interac/EMT
Condition: 9 - Excellent (?)
Date Posted: Apr 03, 18 10:37am (PST)
Edited: Apr 04, 18 12:37am
About Seller: David Dov
David Dov is a premium user
North York,Toronto, ON
Canada
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Time to clear out some more tubes!

12AT7 / 12AU7 Tubes BALDWIN / GE / PHILIPS / RCA / ROGERS / SYLVANIA / WESTINGHOUSE

mostly from $25.00 each

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.


Best offer for all 48 available tubes!


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 @ $25.00 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 RCA clear tops and 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
Paypal + 4


**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!)

Sep 21, 16 8:05pm
Also have matching pairs of:

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
Pairs of RCA clear top 12AU7-----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
6CG7/6FQ7
6AT8A
6U8A
6GH8A
6SN7
8X9
ECH81
12BY7A
12BA6
12BE6
12AU7
12AT7
12SN7
GB-5726
6BN8
6BG6GTB
6CU6
12AH7GT
EF86
EF89
6DA6
13EM7
7591A
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

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
GTA Toronto CASH pick-up is always welcome!

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 +$20.00 to anywhere in Canada on all orders less then $160.00
*Free shipping on orders of $160.00 or more!


These are excellent musical tubes
All sales final
No exchange/No returns


Additional Information:

Aug 17, 17 10:55pm
Also we have these 12AT7 RCA Black Plate tubes are designed to be used as an amplifier or it can be combined as an oscillator and mixer
(as long as the frequencies are below 300MHz.)
The RCA brand are the higher quality tubes.
The 12AT7 has a mu factor of 60.
Each triode section of the tube acts as a class A amplifier.
Because of this, the tubes can be used in microphone preamplifiers, instrument amps, and recording equipment that is equipped with vacuum tubes. The tube features a double triode with separate cathodes, and because of their design, they are low noise.
They requires a noval nine-contact socket, but can be mounted in any position.
Nice and quiet,excellent tone, dynamics and clarity!
Test strong!

Apr 04, 18 12:37am
Up for sale is (1) single Mullard Bausch & Lomb 12AX7/ECC83 10 series tube.
This tube is in very good and strong working and cosmetic condition.
Pins are clean!
Some of the yellow screen prints have slightly rubbed off.
This tube is genuine used old stock made in Great Britain.
This is a medical grade tube as it was made for Bausch & Lomb.
The 10M series are supposed to be good for 10,000+ hours of operation.
The Mullard B&L 12AX7/ECC83 10 series tubes,
are told to have the most quiet background in their class,
and produce excellent detail, warm and sweet sound with a lovely mid range.
You will hear every note, each and every musical instrument!
I hate to let it go but I have way too many tubes still more then I'll need.
Please examine the photos as they are part of the description.
Payable by Cash, EMT-Interac, Canada Post Money Grams
PayPal +4%
Buyer pays for shipping all orders under $159.99
Seller pays for shippping on all orders $160.00 or more!

Thank you for looking.






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