New PCBs from JLCPCB - Drum Synthesiser
$2/5pcs 2Layer & $5/5pcs 4Layer PCBs: https://jlcpcb.com
Vote for me - get PCB coupons: https://jlcpcb.com/Workshop-PCB-Project-Competiton
Analogue drum synthesiser project from 1981
http://www.muzines.co.uk/articles/the-syntom-drum-synthesiser/2593
https://easyeda.com/julian256/Syntom