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Reception Set R103 (UK)
Reception Set
R103
was a small HF receiver designed for monitoring applications in British
Army
non-combat vehicles such as staff cars. The design appears to date from before 1940.
The equipment
covers
the frequency range 1.7 - 7.5MHz in two switched ranges and is tuned by
a
Muirhead drive featuring a directly calibrated engraved tuning dial.
It
was intended to be used with an external power supply, which operated
from
a 12 Volt DC supply, and which also contained the loudspeaker.
The receiver
is a
seven valve conventional superhet, consisting of a single RF amp,
mixer/LO,
two IF stages, detector/AVC/AF amp, AF output stage, and BFO.
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