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> Classifieds > > > Excellent sounding 12AV6 / 12BA6 / 12BE6 / 12AU7A / 12AT7 / 12AU6 single tubes from $25.00 each!

FOR SALE: Excellent sounding 12AV6 / 12BA6 / 12BE6 / 12AU7A / 12AT7 / 12AU6 single tubes from $25.00 each!

Item #649373355
Info: Excellent sounding 12AV6 / 12BA6 / 12BE6 / 12AU7A / 12AT7 / 12AU6 single tubes from $25.00 each!

Asking Price:
CAD $20.00
Payment method: Cash, Paypal, Money Order, Money Wire, Interac/EMT
Ships to: Canada, United States
Condition: 9 - Excellent (?)
Date Posted: Dec 03, 18 22:10 (PST)
Edited: Dec 03, 18 22:12
About Seller: David Dov
North York,Toronto, ON
Canada
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Excellent sounding 12AV6 / 12AU6 / 12BA6 / 12BE6 / 12AU7A / 12AT7 / 12AX7 / 12BY7 / 12AU7A / 12AT7 /
single tubes from $20.00 each!
Many of these are selected organ grade tubes are a great value!
Tested on a calibrated B+K tester with no gas or shorts.
All have tested very strong!
Price is from $20.00 each
GTA cash pick up is at Finch + Dufferin area
North York, Toronto

Also have some very nice and well balanced 1960's GE 5814A tubes
Made in USA.
NOS GE 5814A triple mica tubes 12AU7
These are the very desirable triple mica version.
Tubes are all matched with 5%
It is a very good upgraded variant substitution for 12AU7 tubes.
All tubes tested on my B+K tube tester with no leaks or shorts.
Tubes all measure between 2300 and 2500 where minimum on this tubes is 1175.
New tubes measure around 2200.
Selling for $80.00 a pair
.

*Also have some very nice and quiet 5963 which is a MEDIUM-MU TWIN TRIODE. 9—PIN MINIATURE TYPE
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.
GE has it in their 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

5963 tubes (12AU7 variants) from $35.00 each

G.E. long plates (1960's) @ $35.00 each
RCA long plates (1960's) @ $35.00 each
HP-AMPEREX long plates @ $35.00 each

Also have some Made-in the-USA, single RCA 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) each
You can have them at $60.00 Cdn each.

Also have some very strong tested excellent ECC85 - 6AQ8 tubes available @ $30.00 each

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 $20.00/Quad 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.

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

Also have some very nice and well balanced 1960's GE 5814A tubes
Made in USA.
GE 5814A triple mica tubes 12AU7
These are the very desirable triple mica version.
Tubes are all matched with 5%
It is a very good upgraded variant substitution for 12AU7 tubes.
All tubes tested on my B+K tube tester with no leaks or shorts.
Tubes all measure between 2300 and 2500 where minimum on this tubes is 1175.
New tubes measure around 2200.
Selling for $80.00 a pair INCLUDES SHIPPING TO ANYWHERE IN CANADA!

*Also have some very nice and quiet 5963 which is a MEDIUM-MU TWIN TRIODE. 9—PIN MINIATURE TYPE
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.
GE has it in their 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

5963 tubes (12AU7 variants) from $30.00 each

G.E. long plates (1960's) @ $30.00 each
RCA long plates (1960's) @ $30.00 each
HP-AMPEREX long plates @ $30.00 each

Also have some Made-in the-USA, single RCA 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) each
You can have them at $60.00 Cdn each.

Also have some very strong tested excellent ECC85 - 6AQ8 tubes available @ $30.00 each


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



This ad was originally posted on Canuck Audio Mart Canuck Audio Mart and the seller ships to Canada, and the United States.



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