u/PaulInGalatia

Hey guys,

Breadboarding and prototyping this LM13700 VCF. Currently having issues with hearing the filter and I'm wondering if I've done something wrong with voltage referencing.

It's based on Ray Wilson and Kassutronic's designs.

Let me know if anything stands out.

Hey y'all!

I'm trying to get my feet wet designing and having PCBs manufactured.

I've followed a couple tutorials but this is my first design I've done by myself.

The front copper mask is 9V after the diode and the back copper mask is ground.

https://postimg.cc/ykVKnnLc

https://postimg.cc/6y9KzzML

https://postimg.cc/nCHxTT3v

https://postimg.cc/VdYw44KX

https://postimg.cc/vgJBc9y7

https://preview.redd.it/z48oe8llfx9h1.png?width=2642&format=png&auto=webp&s=6304f16fee9492d6ce86d53aee36be1810a16ff1

I'm using some 100nF 100VDC Mylar caps that were hard to find the footprint for but I'm pretty sure the footprints I picked work well.