Hmmm, speaking of Ramsa boards, I've got a WR-T820 for sale. $1000 Canadian (That's cheaper for you). It's 20x8x2, 2 AUX's, I have the LED/VU combo meter bridge. It comes with a road case, and I even had two spots for beers cut out in the foam (I used to use this for live sound). These boards have a...

A friends dad had a Maestro FSH-1 Filter/Sample-Hold,
(it's the same as the Oberheim VCF pedal).

I asked him if it was cool, and he said "it would be if it worked".

Gave it to me for free. One op-amp was dead, so it was a 50 cent
repair.

Can anybody beat the 50 cent mark?

I'm starting to wonder if it would be possible to do the switching using SCR's (Silicon Controlled Rectifiers). As far as my understanding goes, a current applied to the gate will allow current to flow through the device until current is re-applied. I may be wrong on this, but I believe it may serve...

Thank you, those Omron relays would suit the purpose nicely. If I am unable to find an electronic switching solution, I've decided to use relays. I think I will build a proper regulated power supply into the case, I always hated walwarts anyways. I still need to find out how those pushbutton mode se...

I am in the component-gathering phase of building an Electro Harmonix Guitar Micro Synthesizer. I reviewed the schematics, and the only difference between the guitar and bass model is 3 capacitors and one resistor, so I figure why not make it switchable. I know there's a lot of other ways (for examp...

Does anyone know how to swap 4 components in a circuit for 4 different ones, controlled by a single toggle switch (SPDT)? I think I would need an 8PDT switch, but I don't imagine that is something that's commonly available. Is there a way of doing it digitally (logic switching)? I thought of an easy...