TWILIGHT ZONE (Bally) Trough sensor upgrade

#A-16533-PP

Upgraded version of Bally TWILIGHT ZONE pinball machine trough ball proximity sensor kit

The TWILIGHT ZONE Trough Proximity Board improves upon the factory sensor board. It features a precision 20 turn adjustment potentiometer and increased sensitivity range from contact up to 1/4" distance. It comes as a kit with the sensor coil, switch interface board, fasteners (rivets and screws) to swap the coil bracket and instructions.

Ships un-assembled.

Reference:

  • A-16533 circuit and coil board and bracket assembly
  • A-16534 proximity opto sensor circuit board assembly
  • A-16528 trough coil circuit board assembly
  • A-16393 coil
  • 01-11344 bracket ball sensor
  • 07-6688-18N (2) rivet 3/16 x 1/8 nickel (substitute nut & bolt)
  • A-16528 coil trough
  • 5768-13502-02 pcb-trough coil
  • 5791-12548-03 connector 3h r/a lck sq .100
  • TWILIGHT ZONE Trough Proximity Detector (repairs 'Switch 26' error code)

2 oz

NOT CURRENTLY AVAILABLE. Listed for reference.