BBC radio microphone type XFM/4, 1955, in wooden transit case. Serial No. 157.
The transmitter of the radio microphone equipment recently developed [as of December 1955] by the Designs Department, BBC Engineering Division. The overall size of this transmitter is the same as that of a packet of twenty standard cigarettes.
- Radio Communication
- Object Number:
- furnishing and equipment
- tools & equipment
- audio equipment
- Institution of Electrical Engineers
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