NOTE! Due to sensitivity on games with white plastic interruptors, we do not recommend using this opto without switching to black plastic interruptors.
Can be used on fliptronic optoboards, droptarget optoboards and most other type of fork opto that Williams and Bally has used in their games.

This opto is one of the few still in production by Fairchild Electronics. This is also the opto used in the reproduced Twilight Zone clock boards. If you prefer to repair your old clock board, then you have to use single in line IC sockets to lengthen the legs. Also the marking on the opto is opposite so the "S" equals "E" on WMS boards.