Quote:
Originally Posted by RiverRatt
Is this the 80's one with the autobot logo? I bought one of those and it didn't do anything for me.
Marty, did you see my tube question above?
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I'm sorry, I got all caught up in that DEAN ad that Josh posted.
I can answer part of your question. It is a Tungsram. If you have four out of a guitar amp, I would say they are 12AX7. If so, and if they are good, these tubes go for between 40 and 70 dollars each. They are also considered by audiophiles (who roll tubes everyday) to be one of the sweetest 12AX7's around.
Go here for a little more info:
Tungsram 12AX7/ECC83.
Now as far as the metal tag? Not all Tungsram have them. I think they were limited to the AU7, the AT7 and the AX7 (ECC81, 82, 83). What do the other tags say? I doubt if they are 1963 tubes, "But they could be!" If I remember, the tags were lot or production ID numbers. I'll look a little harder. The main thing is you have four of them babies. Good for you.
Marty