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Hoffman Amps Forum image Author Topic: 6SJ7 driven tremolo? Silvertone1333  (Read 1588 times)

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Offline Jerry garrcia

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6SJ7 driven tremolo? Silvertone1333
« on: May 25, 2023, 04:28:45 pm »
Trying to learn true point to point and tremolo circuit function and optimal layout for that. Just finished a 5F2a with 6SL6’s for a friend and also integrated @kaglisto 6SL7 integrated trem circuit based on @Slucky circuit. Built on an eyelet boar (For e friend). Mostly just like a kit build with integrated different schematics and layouts.here’s my main problem. Don’t really understand the tremolo circuit as a whole. I understand that it usually alters the bias of either the preamp by its cathode or the grid of the output tubes (except the earliest ga-40 that alter the bias though the screens of the OPT.
I have a lot of 6SJ7’s and saw and heard the tremolo of theSilvertone 1333. I don’t really understand how to place that trem circuit in another scrap build TPTP. Does anyone have that info and care to chare it? Signal path and optimal layout without a bord? Don’t find any good info in the layout of that circuit. Only bad guy shots and schematics. Need more than that to learn  :worthy1: it would suit an old radio cab perfectly with limited space.
« Last Edit: May 25, 2023, 04:36:07 pm by Jerry garrcia »

Offline sluckey

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Re: 6SJ7 driven tremolo? Silvertone1333
« Reply #1 on: May 25, 2023, 04:42:40 pm »
That's a straight forward circuit that sends the trem signal from the intensity pot to the grid leak resistors for the output tubes. Should be easy to adapt to most any PP cathode biased 6V6 circuit. Post a schematic for your intended scrap build and we'll see if we can give more details.
A schematic, layout, and hi-rez pics are very useful for troubleshooting your amp. Don't wait to be asked. JUST DO IT!

 


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