Trough opto board
Late model Williams/Bally pinball machine WPC 5-7 opto receiver board replaces part numbers A-18618 or A-18618-1.
Companion to the A-18617-1 transmitter board.
Used on the following Williams/Bally machines
- Replaces the A-18618
- 5768-14122-02 pc boar
Note: Part numbers for Bally and Williams pinball machines manufactured after 1988 are the same.