- Amps [BG]
|137h4lone ||09-11-2013 06:32 PM |
12ax7 or 12au7 ? Telefunken content!
Can anyone tell me what kind of tube this is ? I know it's a telefunken but the letters after the 12A are rubbed off . Help is much appreciated ! Attachment 361777Attachment 361778
|B-string ||09-11-2013 06:38 PM |
Put it in a working circuit that calls for a 12AX7, if the gain is low it is probably a 12AU7.
|137h4lone ||09-11-2013 07:03 PM |
Thanks b string! I tried it and the gain was about the same . It did take a little longer to warm up and sounded alot smoother than the sovtek that was in there though .
|B-string ||09-11-2013 07:05 PM |
Sounds like a AX7 then. Really sweet, smooth tone from those!
|137h4lone ||09-11-2013 07:13 PM |
I can kind of make up an ECC83 or an ECC88. i hope its an 83 which would confirm what your telling me . Sounds a lot better than the sovtek ! Would an 88 work in the circuit ?
|B-string ||09-11-2013 07:29 PM |
ECC88 is closely related to the 6DJ8/6922, I would think the 88 would sound pretty bad. The 88 was more intended for VHF oscillator/mixer apps.
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