marshall guv'nor

[sonic tooth]

hi, i'm quite new here...
i posted topics three years ago under another name...
i build several boxes such TS-808 (w/ elect. switch!), solo-pro, fuzz face, sonic distortion, escobedo's lofo mofo, bypasses & amp footswitch... but i tried Marshall Guv'nor and something went wrong...
the schematic i've done is the one on generalguitargadgets, i controlled it...
it sounds great, but when the note is in decadence it sounds like a tremolo effect!
i cannot explain the fact... i'll better try it:
when i pick a note (or chord) the sound volume goes down regularly cyclical for about two seconds, then this tremolo effects
go faster for a second and disappear.
i tried with 9v battery and with an adaptor... no changes
i suspect it depends on some capacitor...
i'm sorry for the poor explanation , i don't know electronical speeches!!!
can anybody understand me or help me please?
can anybody answer in italian please?
hi everybody!

[Jaicen_solo]

Sounds like there's something oscillating in your op-amp stages. Look at what you have in the negative feedback path, maybe one of the resistors is bad?

[sonic tooth]

thanks for posting
i'll control the resistors.
i have an image of my board...
but i can't put it on topics... does anybody tell me how?

[sonic tooth]

here's my guv'nor