- Country
- United States of America (USA)
- Manufacturer / Brand
- Hallicrafters, The; Chicago, IL and Arlington/Grand Prairie, TX
- Year
- 1952
- Category
- Military Receiver
- Radiomuseum.org ID
- 86476
- Number of Tubes
- 18
- Valves / Tubes
- 6AG5 6BA6 6BE6 6C4 6BE6 6BA6 6BA6 6BA6 6BA6 6BA6 6AL5 6AT6 6AL5 6BA6 6Y6 6AG5 6BA6 VR150 5U4
- Main principle
- Superhet, double/triple conversion; ZF/IF 6000/455 kHz; 2 AF stage(s)
- Wave bands
- Wave Bands given in the notes.
- Power type and voltage
- Alternating Current supply (AC) / 95-260 Volt
- Loudspeaker
- - This model requires external speaker(s).
- Power out
- 2 W (unknown quality)
- Material
- Metal case
- from Radiomuseum.org
- Model: R-274/FRR - Hallicrafters, The; Chicago,
- Shape
- Rack
- Dimensions (WHD)
- 508 x 280 x 470 mm / 20 x 11 x 18.5 inch
- Notes
-
Coverage 0.54-1.35, 1.35-3.45, 3.45-7, 7-14.4, 14.4-29.7, 29.7-54 MHz, 2nd IF 6000 kHz, tunable HFO 7-54 MHz, single conversion 0.54-7 MHz, 6 fixed crystal positions with crystal vernier tuning, designed for rack mounting, designed initially for the military-commercial market, ready for mounting in a 19" rack, similar to Hammarlund SP-600, turret coil selector. R-274/FRR is the military number for the SX-73, there are no appreciable differences between the units. Mainly used in US army for RTTY and point to point purposes.
- Net weight (2.2 lb = 1 kg)
- 26.3 kg / 57 lb 14.9 oz (57.93 lb)
- Source of data
- Radios by hallicrafters
- Mentioned in
- -- Original-techn. papers. (TM 11-897)
- Author
- Model page created by a member from D. See "Data change" for further contributors.
- Other Models
-
Here you find 922 models, 472 with images and 520 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
All listed radios etc. from Hallicrafters, The; Chicago, IL and Arlington/Grand Prairie, TX
Collections
The model is part of the collections of the following members.
Museums
The model can be seen in the following museums.