Hoffman Amplifiers Tube Amplifier Forum
Amp Stuff => Tube Amp Building - Tweaks - Repairs => Topic started by: owen on January 05, 2022, 03:59:53 pm
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Hi All! Discovering how beautiful Bias-Vary trem is with my 6g2, I'd like to build the 6g9-A Tremolux with Tremolo ONLY channel into a small chassis to match my 6g2 head. Some questions:
1) For heat management (and space in general), would it be better to Buy a longer black panel Princeton Reverb chassis VS modify the spare 6g2 Princeton chassis I already own? or is it moot?? Buying a chassis and building a new head cab wouldn't be the worst thing. I'd be adding the appropriate tremolux filter cap pan underneath.
2) When removing the Normal channel, Should I initially change the bright channel 820R 12ax7 cathode resistor to 1K5? Looking for clean overall. would be an easy swap after it's built and biased.
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I've though about a similar project. A one-channel 6G4 Super will fit in a Princeton Reverb chassis without drilling any tube socket holes: 4 12AX7's, 2 6L6GC's and a GZ34. And, the 6G4 has the 4-triode Harmonic tremolo.:
https://el34world.com/charts/Schematics/files/Fender/Fender_super_6g4_schem.pdf
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I've though about a similar project. A one-channel 6G4 Super will fit in a Princeton Reverb chassis without drilling any tube socket holes: 4 12AX7's, 2 6L6GC's and a GZ34. And, the 6G4 has the 4-triode Harmonic tremolo.:
https://el34world.com/charts/Schematics/files/Fender/Fender_super_6g4_schem.pdf
Great project! I'm almost finished with my 6g4 super in a bandmaster chassis, and I can't wait. I chose the tremolux for the bias-vary tremolo, otherwise I'd have considered the same thing when I was researching my 6g4. I rarely use the normal channels on these amps.