After reading the Dumble chapter in TUT6 (if you don't have it get it!) I got really interested in the different Dumble circuits. Most are simply variations of what is in TUT6 but the Steel String Singer caught my attention since it's a little different. Basically what I'm seeing is the Dumble clean channel but with a reverb configured a bit like standalone reverb unit and switchable filter. That makes sense to me.
However the topology of the phase inverter does not. It looks like a schmitt but has a cathode follower for each drive line. Is there any benefit to this approach over the standard plate driven configuration? Has anyone here played an amp with this topology? I've attached a schematic!
Hmmm....I've having trouble attaching the PDF. Hopefully you guys can still envision what I'm talking about....
However the topology of the phase inverter does not. It looks like a schmitt but has a cathode follower for each drive line. Is there any benefit to this approach over the standard plate driven configuration? Has anyone here played an amp with this topology? I've attached a schematic!
Hmmm....I've having trouble attaching the PDF. Hopefully you guys can still envision what I'm talking about....


