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Anyone know anything about 12av7? My friend gave me these. In the forums, people say they're quite microphonic. Also in the family for 12ax7.

They're Tung-sol, form what appears to be, from the 50s,...also got sylvianas and RCAs.Anyone tried using these on amps before?

They are more like a 12AT7 than a 12AX7, but with less gain.

12AX7 gain is 100
12AT7 gain is 60
12AV7 gain is 17

Try them anyway.

Slowy wrote: ↑Sat Jan 16, 2021 9:00 pm 12AX7 gain is 100
12AT7 gain is 60
12AV7 gain is 17

Try them anyway.

Nothing ventured, nothing gained....definitely not in this case lol.