Taking my time building an UP amp into an old Bassman 50 amp chassis. That rock/jazz switch is a PITA to wire. Still dressing wire.
Let me know if you guys see anything.
Thanks!
Making a go of the UP Bassman.
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FuzzFaceBuilder
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Making a go of the UP Bassman.
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dorrisant
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Re: Making a go of the UP Bassman.
What schematic and layout are you using?
"Education is what you're left with after you have forgotten what you have learned" - Enzo
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FuzzFaceBuilder
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Re: Making a go of the UP Bassman.
Mostly working out of this thread, and some educated guesses:
http://ampgarage.com/forum/viewtopic.ph ... e&start=30
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Re: Making a go of the UP Bassman.
i like everything inside, waiting the final result. 
i would put 220k MF for the bias of out. stage, better, and save Dralorics for some other signal purpose
i would put 220k MF for the bias of out. stage, better, and save Dralorics for some other signal purpose-
Charlie Wilson
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FuzzFaceBuilder
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Re: Making a go of the UP Bassman.
Here you go!
UP Bassman w/Gain as it looked at power up. Played it for a few weeks then started tweaking circuit. (FYI, component values stayed the same, only their composition changed).
I’ve been using the “gain” video as a guideline for tuning the circuit. (As ridiculous as this may sound, after playing my amp for a few weeks, I’m pretty sure the “Jazz” switch is ON in this video).
Any other recordings/videos of others playing this amp, by any chance?
More to come soon.
UP Bassman w/Gain as it looked at power up. Played it for a few weeks then started tweaking circuit. (FYI, component values stayed the same, only their composition changed).
I’ve been using the “gain” video as a guideline for tuning the circuit. (As ridiculous as this may sound, after playing my amp for a few weeks, I’m pretty sure the “Jazz” switch is ON in this video).
Any other recordings/videos of others playing this amp, by any chance?
More to come soon.
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Re: Making a go of the UP Bassman.
this one is Sebago UP but it sounds great!
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ijedouglas
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Re: Making a go of the UP Bassman.
Looks fantastic! Congrats!FuzzFaceBuilder wrote: ↑Fri Jun 23, 2023 8:27 am Here you go!
UP Bassman w/Gain as it looked at power up. Played it for a few weeks then started tweaking circuit. (FYI, component values stayed the same, only their composition changed).
Ian