GPR-90

Technical Material Corporation, The; Mamaroneck; NY

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  • Year
  • 1956 ?
  • Category
  • Commercial Receiver (may include amateur bands)
  • Radiomuseum.org ID
  • 110896
    • alternative name: TMC

 Technical Specifications

  • Number of Tubes
  • 15
  • Main principle
  • Superhet, double/triple conversion; ZF/IF 3995/455 kHz; 2 AF stage(s)
  • Wave bands
  • Broadcast and Short Wave (SW).
  • Power type and voltage
  • Line / Storage batteries (perhaps also batteries) / 115/230 Volt
  • Loudspeaker
  • - This model requires external speaker(s).
  • Power out
  • 2 W (unknown quality)
  • Material
  • Metal case
  • from Radiomuseum.org
  • Model: GPR-90 - Technical Material Corporation
  • Shape
  • Boatanchor (heavy military or commercial set >20 kg).
  • Dimensions (WHD)
  • 20 x 10 x 15 inch / 508 x 254 x 381 mm
  • Notes

  • Technical Materiel Company GPR-90 receiver: Frequency Coverage 0.540 to 31.5 MHz in 6 Bands: Band 1 - 0.54 to 1.4 MHz, Band 2 - 1.4 to 3.3 MHz, Band 3 - 3.2 to 5.6 MHz, Band 4 - 5.4 to 9.6 MHz, Band 5 - 9.4 to 17.8 MHz, Band 6 - 17.3 to 31.5 MHz; Bandspread calibrated for the 160 to 10 Meters Amateur Bands;

    Reception modes AM/MCW/CW/SSB/FSK; Selectivity: 7/2/1.5/1/.5/.25 kHz;

    Receiver can be operated from battery power: 6 VDC at 5A and 180-300 VDC at 100 mA.
    Accessory items are GPS-1, the GSB-1 SSB Adapter. A 100 kHz Xtal Calibrator was an add on accessory in the earlier production runs and in later production it became a part of the receiver.

  • Net weight (2.2 lb = 1 kg)
  • 35 kg / 77 lb 1.5 oz (77.093 lb)
  • Mentioned in
  • QST Okt.1956
  • Literature/Schematics (1)
  • - - Manufacturers Literature (Instruction Book For Communications Receiver Model GPR-90)

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