12AT7

[C Moore]

I may have totally missed it in my search, but why is the AT rather than AX used as a reverb driver? I know the AT7 handles a lot of current and has a bit less gain. Current is not usually a problem in tube guitar amps though....
Thank You

[FYL]

Reverb tanks love current, they behave just like speakers. A 12AT7 works fine there.

[C Moore]

Reverb tanks love current, they behave just like speakers. A 12AT7 works fine there.

I never even considered the tank.....
I am not even sure where you would measure a voltage and resistance to figure our the current through a tank.
Thanks You

[d95err]

Reverb tanks love current, they behave just like speakers. A 12AT7 works fine there.

I never even considered the tank.....
I am not even sure where you would measure a voltage and resistance to figure our the current through a tank.
Thanks You

Think of a reverb driver as a small single-ended poweramp, driving an 8 ohm speaker (try connecting the reverb output to a speaker and see...).

There are higher impedance tanks that can be used with a transformerless reverb driver. Solid state amps (or amps with solid state reverb drivers) usually use higher impedance tanks.