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51S-1AF ; Collins Radio (ID = 1615618) Commercial Re
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51S-1AF ; Collins Radio (ID = 1615618) Commercial Re
Collins Radio: 51S-1AF [Commercial Re] ID = 1615618 800x600
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For model 51S-1AF, Collins Radio Company; Cedar Rapids (IA)
Country:  United States of America (USA)
Manufacturer / Brand:  Collins Radio Company; Cedar Rapids (IA)
Year: 1957–1975 Category: Commercial Receiver (may include amateur bands)
Valves / Tubes 6DC6 6BA6 6BA6 6BA6 12AX7 6BA6 12AX7 6BF5 6AK6 6BA6 6U8A 6U8A 6U8A 6136 5670 6U8A 6U8A
Semiconductors (the count is only for transistors) 5:
Main principle Superhet, double/triple conversion
Wave bands Broadcast, Long Wave and more than two Short Wave bands.
Power type and voltage Direct Current supply (DC) / 28 Volt
Loudspeaker - This model requires external speaker(s).
Power out
from Model: 51S-1AF - Collins Radio Company; Cedar
Material Metal case
Shape Rack

General Coverage Communications Receiver Collins 51S-1AF: covering 0.2 - 30 MHz, AM / CW/SSB; double-conversion above 7 MHz, triple conv. below 7 MHz. Notch-filter, 2 mechanical IF filters.

Fitted with three 1N1492 power supply rectifiers and four 2N637B power supply switching transistors.

Rack mounted variant of the 51S-1A with 28 V DC power supply (airplane use).

Source of data Communications Receivers
Mentioned in Shortwave Receivers - Past & Present (3rd ed.)

Model page created by Martin Bösch. See "Data change" for further contributors.

All listed radios etc. from Collins Radio Company; Cedar Rapids (IA)
Here you find 94 models, 69 with images and 33 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.

Collection of a member from H