Book - Scientific Instument, Valve Characteristic Meter, c1960

Physical description

The test rig is contained in a metal frame with sloping front panel that contains the indicator and number seting knobs. A pespex lift-up lid coves numerous valve sockets and a set of coding wheels. Both sides and back covered with pespex. Metal surfaces panted hammerton grey. abbreviated working instructions and AVO Valve data manual.

Inscriptions & markings

Serial Number 1961

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