Adam's Marshall is as follows:
Its a 1959 late 70s with jj el34s and chinese preamp tubes. It is super lead spec w/ 100k feedback on the 4 ohm tap it has a .68 cap for the presence and a .68 for v2 also the caps out of v1 are both .022s. The amp is biased to 25ma and he jumps the channels with a cable.
just incase that helps.. y'know
I remember this from Dave Friedman's responses on metroamp
he also answered me about Billy Howerdel's amp (his tone is way better, imo)
the feedback thing is interesting, but it costs some volume and clarity (I have this mod installed on a switch in my Framus Cobra)
I love the cap on the last gain stage too (I have a switch for that too :lol:)
tone gets more sparkly, but thicker on the mids and more aggressive
.68 will probably make a Plexi too bright/middy, but 1u is a good value, with a bit less upper mid spike
but 25mA for EL34's must sound like shite
I bet he uses 47 or 100n coupling caps after the phase inverter too
