Price is for 1 each. Original (9mm short legs) optical interrupter used on several William/Bally pinball machines. 4 Leg. This is the same Fairchild factory QVE11233 Williams PN: 5490-12451-00 sold. This QVE11233 has the exposed sensors as apposed to the QVA11233 encased sensor. Both are interchangeable.
We also have the OPB804 (long legs) in stock that works on Williams pn: 5490-13451-00 used on Twilight Zone Clock - Minute Opto PCB.
QVE11233 - Fairchild