Germanium diode assembly-on-valve-bases and container.

The diodes are type OA85. Geoff Chandler originated the idea of mounting the diodes on a valve base.

Such assemblies were used in the redesign of CSIRAC when CSIRAC came to Melbourne circa 1955. They were used as gates in the Arithmetic Logic Unit (ALU).

Physical Description

List of Parts: THREE PARTS.

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