After finally putting one of these amps together, I think I understand what all the fuss is about. The amp just oozes classic rock tones!
In this case (as usual), I didn't build the amp exactly to original specs. After some trial and error — a lot of error, actually — I paired the normal Volume/Tone Marshall channel, with its option for paralleled input triodes, with a Volume/Bass/Middle/Treble Fender channel. The Fender channel has a convincing blackface voice at low levels, then morphs into something a little different when it's pushed hard enough to really engage the EL84s.
So far I'm liking this amp a lot, especially with the Eminence Cannabis Rex speaker, which speaks with a fuller voice than the traditional G12M Celestion Greenback.
Technical Rundown
- Circuit based on Marshall 1974 and Fender AB763 amps
- Mojo power and output transformers
- Sovtek EZ81 rectifier
- JJ and TAD power supply filters (32/32/16)
- JJ EL84 power tubes
- JJ and new-issue Tung Sol 12AX7 preamp tubes
- Nichicon and Vishay Atom electrolytic capacitors
- Metal oxide power resistors
- Carbon composition and carbon film signal resistors
- Mojo Dijon signal caps
- Cloth-insulated solid core hookup wire
- Mojo cabinet
- Eminence Cannabis Rex 12" speaker
