analog VCO/LFO

This is a eurorack reissue of both the Digisound 80-2 VCO and 80-3 VC LFO.
Basically the difference between the two modules is the timing capacitor.
Therefore combining the two modules into one was quite easy.
The project was possible thanks to the reissue of the CEM3340 by several companies.

Tested with CEM3340, CEM3340G and AS3340 chips.

https://www.pharmasonic.jp/shop/index.php?id_product=9&controller=product