Ballet

Sparrows

way way back when i was skinny

TRAPEZOID

 

https://synthesizerunderconstruction.blogspot.com/2025/01/emsjhaible-trapezoid-function-generator.html

VC AUX

 

VC AUX BY Mark Bareille

tested and working 

NLC Spasm

 

verified working

Buchla 194

 

 This PCB has option to add 2 more bands by your choice ,taken from Ian Fritz 

Electronotes published filter bank ,so you'd need schematics for that to add aditional 2 bands

 ,it will work without that addition .

This is verified working layout. 

Hagiwo Additive Dual VCO

 

verified ,working!

Tube Theremin

 Tube Theremin @ http://users.triera.net/zupanbra/elektronke/AM_oscilatorji.html