The Amp Garage

while I don't get to lot in very often (and Chrome is insistent my computer will be destroyed if I do... :/) I do truly appreciate all the great info here and the effort that has gone into it. That said, i have an old JMI AC30TB (roughly September '65) I am really fond of, and if it would help anyon...

The trem channel has a 3-pole HPF which gives that channel a different "voice" than the normal or TB channels. It rolls off a lot of bass and gives you a nice mid-heavy tone.

FWIW - Heyboer has a custom part # I spec'd for them which mounts in the L-style original chassis. You could add an endbell and mount it normally too. It's #8047 I've gigged & recorded with it for about 10 years now. It's solid. It puts 330V on the plates (so 320 across the tube) just like the Mulla...