Contraves AG Zürich – PSW 1.1 – Plug-In Module with LED Display & PCB Stack

The Contraves AG Zürich PSW . is a modular plug-in PCB unit featuring LED numeric display segments, analog electronics, and integrated logic circuitry. Designed for industrial control systems, this module likely functioned within vintage computing or monitoring equipment. It features a card-edge connector interface and a compact multi-board stack, enclosed in a labeled aluminum housing.

Key Features:

• Manufacturer: Contraves AG Zürich

• Model/Code: PSW . / QM

• Module Type: Plug-in electronic unit with display

• Display:  stacked -segment LED displays

• ICs Present: LMT- voltage regulator

• Interface: Gold-plated edge connector

• Construction: Multi-layer PCB sandwich design

• Housing: Labeled aluminum faceplate with mechanical latching clips