Details
Date of Manufacture:1954
Manuals and schematics :
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Tube and Semiconductor Complement:
23: EF91 E180F 6F33 EK90 EF93 EB91 GZ33
Model Notes
http://www.skywaves.ar88.net/commrx/RACAL/RA17.htm
http://www.g3ynh.info/Racal/ra17.html
General coverage receiver 980 - 30000 kHz, AM, SSB (BFO).
IF bandwidths 0,1 / 0,3 / 0,75 / 1,2 / 3 / 8 kHz (-6dB), linear analog readout 1 kHz. 100 kHz calibrator.
First receiver using the "Wadley loop drift cancelling technique", development began 1955, prototypes produced 1956.