Hi all,
the fact thatI I lurve my Ambikas goes without saying. I have two of them, SMR4 and SVF. The only thing that irks me a bit about them is that on the stock voice cards, there’s no way to get the filters of different voice cards in tune with each other — the scale is adjustable but not the offset. So you cannot play proper chords with a self-resonating filter patch. The TubeOhm SMR4-Plus version has this, and it would be a great great addition indeed.
From the schematics, it looks like it’s as simple as putting a 50k trimpot between VRef and the TL074 pin… is this correct? If so, it’s an easy fix.
Regards
Björn