Category: waffle

Multiple multiples

Prototype builds of another new design – a dual precision multiple. Not that there was much designing to be done. There was a whole lot of op-amp data sheet reading and I found a great little precision op-amp which seems

Testing a new VCA design.

View this post on Instagram A post shared by mcop ( on Jun 23, 2019 at 3:10am PDT This design uses the V2164 chip and is based on the Mike Irwin core from way back in 2002.

The sound of my Saturday.

Just bought a replacement copy of this having lent the original to a friend many years ago who never returned it. I’m sure it was well enjoyed though so was never to upset. Still sounds great, finest 80’s pop music!

I bought a record!

New panel for an old design.

Just got these in the post. A new PCB material panel for the remaining stock of CV Express boards. All graphics are done in the signal layer rather than silk so they’re shiny silver! The CV Express was the first