Wednesday, January 27, 2021

Varilogic 2 by Grant Richter








 PCB Layout 

this module can change the logic between two gates with voltage control ,so depending on the voltage it can be and / or / xor 




the table is borrowed from Richter's old page which can be still found at the wayback machine along with schematics and more info on this module https://web.archive.org/web/20140810101425/http://www.musicsynthesizer.com/DIY/Grant/grant_richters_synthdiy.htm

PCB Layout is still not confirmed as i don't know if i need this too right now ,i share it if anyone wants to build this .







Sunday, January 24, 2021

амбиентална


Soldermask Arp Quadra Phaser PCB

 from making the ARP Quadra Phaser adaptation by Jurgen Haible ,i get my pcb's done locally and this is how it's done .




Sunday, January 10, 2021

555 VCO

 Thomas Henry 555 VCO PCB Layout ,tested and working ,the dual transistor thing in the 8 pin Dip socket is BCM857 ,this is a slim down version with only triangle and ramp outputs





Tuesday, January 5, 2021