- Country
- United States of America (USA)
- Manufacturer / Brand
- Collins Radio Company; Cedar Rapids (IA)
- Year
- 1960 ??
- Category
- Commercial Receiver (may include amateur bands)
- Radiomuseum.org ID
- 172340
- Number of Tubes
- 17
- Valves / Tubes
- 6DC6 6BA6 6BA6 6BA6 12AX7 6BA6 12AX7 6BF5 6AK6 6BA6 6U8A 6U8A 6U8A 6136 5670 6U8A 6U8A
- Main principle
- Superhet, double/triple conversion
- Wave bands
- Broadcast, Long Wave and more than two Short Wave bands.
- Power type and voltage
- Alternating Current supply (AC) / 115 / 230 Volt
- Loudspeaker
- - For headphones or amp.
- Material
- Metal case
- from Radiomuseum.org
- Model: 51S-1B - Collins Radio Company; Cedar
- Shape
- Tablemodel, with any shape - general.
- Dimensions (WHD)
- 343 x 170 x 381 mm / 13.5 x 6.7 x 15 inch
- Notes
-
General Coverage Communications Receiver Collins 51S-1B: covering 0,2 - 30 MHz, AM / CW/SSB; double-conversion above 7 MHz, triple conv. below 7 MHz. Notch-filter, 2 mechanical IF filters.
Variant of the 51S-1 with rear mounted junction box with military type connectors for power, IF out, audio, muting (J101) and antenna (J102); impedance of remote audio line 150 Ohms.
In the Collins Manual is a reference found: "The junction box provides military-type connectors for power, control, audio and antenna". But since an Army / Air Force designation for this receiver was not yet found it remains unclear whether, where and when the 51S-1B has been in military use.The 51S-1B came equipped with 115 VAC power cable, but could be operated from 230 VAC with special cable.
- Net weight (2.2 lb = 1 kg)
- 12 kg / 26 lb 6.9 oz (26.432 lb)
- 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 100 models, 77 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)