"Feedback/Sustain" Control

[neskor]

Any idea how to achive this "Feedback/Sustain" Control
Which part of circuit is changing with this switch?

[bepone]

it was allready discussion before, i think coupling cap increase between the stages

[erwin_ve]

It was discussed in this topic. Some educated guesses came up but no conclusive information: https://ampgarage.com/forum/viewtopic.php?f=4&t=36247

[ayan]

It was discussed in this topic. Some educated guesses came up but no conclusive information: https://ampgarage.com/forum/viewtopic.php?f=4&t=36247

Looking at the gut shot in the above thread, as well as hearing the effect of the rotary switch, I suspect the additional gain -- it's not just more 'feedback' and it can be heard in the video -- is probably the Paul Rivera trick of progressively increasing the value of the treble cap.

G.

[WhopperPlate]

It was discussed in this topic. Some educated guesses came up but no conclusive information: https://ampgarage.com/forum/viewtopic.php?f=4&t=36247

Looking at the gut shot in the above thread, as well as hearing the effect of the rotary switch, I suspect the additional gain -- it's not just more 'feedback' and it can be heard in the video -- is probably the Paul Rivera trick of progressively increasing the value of the treble cap.

G.

That’s what I said . Something like a seven step rotation from 300p to the fully bypassed .002.