British Telecom telephone amplifier or loudspeaker unit, model STM, 1981

Made:
1981
maker:
British Telecom
Telephone amplifier or loudspeaker unit, model STM 81/1

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Telephone amplifier or loudspeaker unit, model STM 81/1
Science Museum Group
© The Board of Trustees of the Science Museum

Telephone amplifier or loudspeaker unit, model STM 81/1, made by British Telecom, 1981

Details

Category:
Telecommunications
Object Number:
2000-945
type:
telephone amplifier
credit:
BNR Europe Ltd