A-17981/A-17982 WPC 7 Trough Opto (pair)

Replaces A-16926/A-16927.
Sold as a pair.

Faithful, electrically and visually accurate replicas of the original WPC Widebody 7-trough opto boards, built using modern, high quality components and matched routing.

Technical Features
• Improved thermal performance on the commonly heat-damaged transmitter board.
• Matched infrared emitters and phototransistors
• Quality Molex connectors
• Built using modern components from reputable manufacturers
• Authentic schematic correct design — all component placement, connections and routing match the original WPC board and schematic
• Fully tested

Why choose these boards?
7-Trough opto boards are now decades old, and many have suffered from significant heat damage and infrared emitter/phototransistor failures.

Even when repaired, you’re still relying on components that have already lived a long service life – and the PCB tracks/pads are often damaged – leading to reliability problems such as random ball deployment.

The MC Circuit Works board is a clean, drop in replacement that behaves exactly like the original — same timing, same routing philosophy, same component choices — but built with fresh silicon and clean copper.

For restorations, long term reliability, or machines that see regular play, new boards are often a better solution than continuing to patch ageing originals.

If you want a board that:
• Drops straight in
• Looks and behaves like the factory original
• Uses quality components and connectors
• Matches the original schematic and routing