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BC-457-A - Aircraft
40 W communications transmitter, part of SCR-274-N
command set. 4.0…5.3 MHz, A1 / A3. Powered
by DM-33 dynamotor
located on BC-456 modulator unit.
Manufactured by Western Electric from 1940. We
have another aircraft TX, BC-458 (5.3…7.0 MHz), on display
in Showcase No.2.
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