How to Spot a NOS 6V6GT Vacuum Tube
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Uploaded by audiotubes on Feb 15, 2009
This is a brief instructional video showcasing several popular 6V6GT electronic tubes, which are used in many musical instrument amplifiers. These are the vintage types from the period 1940-1970, and the different types are highlighted.
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Uploader Comments (audiotubes)
All Comments (20)
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Are these NOS or just OS ?
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Very informative. I use a lot of 6V6's....I have 9 Ampex portable speakers that use them.
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@MyLesPaulcopy Hi, check out our stock list on our website!
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@scottb1966 Yes, CBS did make tubes, the earliest ones were branded 'Hytron'. EIA manufacturer code 210.
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That only applies to quartz envelopes, not regular glass as used in vacuum tubes
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You forgot to mention the 7408. Same as a 6V6GT in every way, just an alternative label.
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I have just come across some old 6V6's. Some Sylvania's, a RCA gray glass, a Hammond clear glass, (which I think was made by RCA because of the code "274" on it) and a CBS.
I can not find out anything about the CBS. There is no manufacturer code. Did CBS make their own tubes? It has what I think is a date code of 5748, which I think means the 48th week of 1957, correct?
Thanks for the informative video's!
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i'v got 2 6v6 b9a base equivelents in my tape recorder
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Thanks for making this info available.
Please-- get in to your camera menu, turn OFF the autofocus! It's giving me a headache.
1ultrasonic 2 years ago
I should re-shoot this video. I no longer have this camera and the focus was really a problem in this video. Thanks for watching!
audiotubes 2 years ago
@audiotubes when you reshoot, don't forget to add the GE version and point out the russian and chinese fakes too :) otherwise, very good series on NOS tube spotting.
MovieTech 1 year ago
@MovieTech Thanks!
audiotubes 1 year ago
It's worth noting that pin #1 of the metal 6V6 is tied to the shell, so it should not be plugged into an amp that uses pin #1 as a tie point for the grid-stopper resistor. Same deal for the metal 6L6's.
ThermionicScott 2 years ago
Absolutely correct. That is why the metal tubes never caught on for guitar amps. If your amp does not have a connection for pin 1, or it is just ground, then you can try them. They are much less costly than the glass versions.
audiotubes 2 years ago