258j Dual Oscillator, Dual VC Bandpass Filter, J3RK 291 Bandpass Filter (Clarke Panel), FadeX and Fadex Large are among J3RKs most popular products.
DIY VCF module based on Buchla 291. PCB designed by J3RK . Panel designed by Clarke.
Buchla 258 Clone with Clarke68 panel
Fadex Large
4HP version
dual buchla 291 bandpass filter
Dual Mirror Core VCO
DIY j3rk sequencer with Clarke panel
Dual Ultrafade VCO
Buchla 258 Clone with Clarke68 panel, and red Buchla 200 Rogan knobs