R-390A/URR

MILITARY U.S. (different makers for same model)

Data
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  • Year
  • 1954–1985
  • Category
  • Military Receiver
  • Radiomuseum.org ID
  • 68887

Click on the schematic thumbnail to request the schematic as a free document.

 Technical Specifications

  • Number of Tubes
  • 24
  • Main principle
  • Superhet with RF-stage
  • Wave bands
  • Broadcast plus more than 2 Short Wave bands.
  • Power type and voltage
  • Alternating Current supply (AC) / 115/230 Volt
  • Loudspeaker
  • - This model requires external speaker(s).
  • Material
  • Metal case
  • from Radiomuseum.org
  • Model: R-390A/URR - MILITARY U.S. different makers
  • Shape
  • Rack
  • Dimensions (WHD)
  • 19 x 10.5 x 16 inch / 483 x 267 x 406 mm
  • Notes
  • AM/CW/MCW; dual/triple conversion; (32) 1-MHz bands; xtal and mech. filter. 54000 sets made by Collins and other manufacturers as well Motorola, Stewart-Warner, EAC, Capehart, AMELCO, Fowler, Teledyne, Dittmore-Freimuth and Helena Rubenstein (last was original, but relabled Collins).
  • Net weight (2.2 lb = 1 kg)
  • 29.5 kg / 64 lb 15.6 oz (64.978 lb)
  • Price in first year of sale
  • 2,500.00 $
  • External source of data
  • Konrad Birkner

 Collections | Museums | Literature

Collections

The model is part of the collections of the following members.

Museums

The model can be seen in the following museums.

 Forum

Forum contributions about this model: MILITARY U.S.: R-390A/URR

Threads: 1 | Posts: 1

R-725 is a direction-finding set with an IF strip similar to the R-390, developed by Motorola and built by Servo and Arvin. No more than 300 sets produced.

R-1274/GRC-129 model is a special variant, widely in use by the NASA for the APOLLO effort.

For further information see Fred Osterman: Shortwave-Receivers - past and present.

Eilert Menke, 23.Apr.04

Weitere Posts (1) zu diesem Thema.