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True bypass loop/ feedback loop.

1569 Views 4 Replies 4 Participants Last post by  SAURUS
I built this circuit but it doesn't seem to work the way I expected it to. When I switch it into the feedback loop mode it doesn't oscillate the pedals into oblivion?! The 500k pot seems to work as a volume instead of controlling the amount of oscillation. I am pretty confident I built it correctly and upon checking back to the site I discovered that others had reported similar issues. Is there an issue within this design or am I missing something?

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I think you are defining 'feedback' different than the designer.

This 'pedal' has no gain stage, so I don't know how it could create any oscillations of it's own. Without looking to far into the signal path, I'm guessing the 'feedback' pot is more like a mix pot, mixing more or less signal into the send jack. If you have a high gain pedal or a delay set to oscillate in the 'send/return' path, I can see how that pot might control the amount of feedback via the outboard effect. Other than that, I think it's just a terminology problem - something endemic in the guitar world.
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