8BitM8 Parts List / BOM
Resistors
2 x 100R 1/4W 
1 x 220R 1/4W 
6 x 470R 1/4W 
3 x 1K 1/4W 
4 x 10K 1/4W 
2 x 1M 1/4W 
Capacitors
470u 16V Radial Electrolytic
100u 16V Radial Electrolytic
10u 16V Radial Electrolytic
2 x 4.7u 16V Radial Electrolytic
3 x 100n Poly Box
2 x 22pF Ceramic
5 x 100nF Ceramic
Potentiometers 
3 x 10K Linear, 9mm Alpha-type
100k Trimmer
ICs & Crystal
ATmega328P with pre-programmed firmware
BC546 Transistor
Bourns 4310R-2R-103LF Resistor Network (2-2R Ladder DAC)
7805 (TO220 Package) Voltage Regulator
TL071P IC
16MHz Crystal Clock
Diodes
6 x 5mm LEDs
1N4148 Diode
1N4001 Diode
Switches
Miniature SPDT toggle switch, centre off
Momentary stomp switch / Arcade Button
Miniature DPDT relay, 5V coil (Meishuo MCB-S-205-C-M or Tianbo HJR 1-2C D-05V work fine)
Connectors
2 x 1/4” mono jack socket, chassis mount
2.1mm DC power socket