Grateful Dead Music Forum

A place to talk about the music of the Grateful Dead 

 #104860  by tigerstrat
 Mon Oct 31, 2011 3:23 pm
I'm kinda curious as to why a power amp would sport three 12ax7 tubes...
 #104863  by Cmnaround
 Mon Oct 31, 2011 3:48 pm
Yeah, I should have titled the thread Pre- and power amp tube replacement. It has the matched pairs of EL84 power tubes, then a single 12AX7 for the input stage, and one 12AX7 for each phase inverter, A and B sides.

Preamp has no reverb, so only a single 12AX7 for each side, clean and lead, although I'm often using the clean side for lead hehe.