Photo transistor counter [Counting Instruments Ltd]
Maker and role
Counting Instruments Ltd, Manufacturer
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Object detail
Accession number
1982.98
Maker
Description
A phototransistor counting unit, encased in grey metal rectangular case with cylindrical end. Transparent perspex cover over the front which protects lamp inside. Threaded hole at the back and mounting holes on the base.
Marks
COUNTING INSTRUMENTS LTD / PHOTO TRANSISTOR COUNTER / TYPE No 500 / VOLTS 110/250AC / MADE IN ENGLAND Maker's Plate
Credit Line
Counting Instruments Ltd. Photo transistor counter [Counting Instruments Ltd], 1982.98. The Museum of Transport and Technology (MOTAT).
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