Quantity   Component name
1 × Arduino Nano main processor
1 × holtek ht16k33 used to control all lights and the keyboard
2 × MCP23017 port expander for the plugboard
4 × alphanumeric digits what the "rotors" shows
4 × rotary pulse encoder, similar to KY-040 but a shorter shaft is needed input for the rotors
30 × tactile keys for the keyboard and switches under the rotors
26 × panel mounted banana jacks for the plugboard
1 × 2P6T switch Mode selection and on/off, 2 pole 6 throw.
1 × 74hc02 Electronic Components / Misc. Electronic Components
1 × 74hc4002 Logic ICs / Gates and Inverters
26 × LEDs light bulb replacement
3 × alphabet stickers A-Z for lampboard, keyboard and plugboard
31 × Key caps
1 × PCB kit Kit of 3 large circuit boards
26 × TVS diod for ESD supression on the plugboard
1 × resistors A few resistors to be used for pullup
1 × Sound board small mp3 sound board for some of the sound
1 × Powersource 2xAA and a battery to 5V buck-up converter is what the board is designed for