Quantity   Component name
1 × YM2149F YM2149F chip. Obtained from EBay or China outlet.
1 × Teensy 3.2
1 × ECS-100AX-020 Electronic Components / Misc. Electronic Components
3 × 1K ohm resistors
1 × 6n138 optoisolator
1 × 1n914 diode Discrete Semiconductors / Diodes and Rectifiers
1 × 220 ohm resistor
1 × 270 ohm resistor
1 × 5 pin circular din connector
1 × 1/8th" stereo audio connector or simular