- Country
- United States of America (USA)
- Manufacturer / Brand
- Collins Radio Company; Cedar Rapids (IA)
- Year
- 1957–1975
- Category
- Commercial Receiver (may include amateur bands)
- Radiomuseum.org ID
- 172317
- Number of Tubes
- 0
- Valves / Tubes
- 6DC6 6BA6 6BA6 6BA6 12AX7 6BA6 12AX7 6BF5 6AK6 6BA6 6U8A 6U8A 6U8A 6136 5670 6U8A 6U8A
- Number of Transistors
- 5
- Semiconductors
- 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).
- Material
- Metal case
- from Radiomuseum.org
- Model: 51S-1AF - Collins Radio Company; Cedar
- Shape
- Rack
- Notes
-
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.)
- Author
- Model page created by Martin Bösch. See "Data change" for further contributors.
- Other Models
-
Here you find 99 models, 75 with images and 35 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
All listed radios etc. from Collins Radio Company; Cedar Rapids (IA)
Collections
The model 51S-1AF is part of the collections of the following members.