• Year
  • 1946–1950
  • Category
  • Amateur-Receiver (amateur bands, may include broadcast bands)
  • Radiomuseum.org ID
  • 69103

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

 Technical Specifications

  • Number of Tubes
  • 14
  • Main principle
  • Superhet, double/triple conversion; ZF/IF 1500-2500/500 kHz
  • Wave bands
  • Short Wave (SW only)
  • Power type and voltage
  • Alternating Current supply (AC) / 115 Volt
  • Loudspeaker
  • - This model requires external speaker(s).
  • Material
  • Metal case
  • from Radiomuseum.org
  • Model: 75A-1 - Collins Radio Company; Cedar
  • Shape
  • Boatanchor (heavy military or commercial set >20 kg).
  • Dimensions (WHD)
  • 21.12 x 12.25 x 13.8 inch / 536 x 311 x 351 mm
  • Notes
  • Collins 75A-1 Amateur Band Communications Receiver: Double conversion, AM/CW, six amateur bands from 80 - 10 meters (3,2-4,2 / 6,8-7,8 / 14-15 / 20,8-21,8 / 26-28 and 28-30 MHz), five step crystal filter 0.2 to 4 kHz, optional mechanical IF filters.
    Sometimes referred to as 75A:
    Osterman states: "One view is that the 75A-1 was simply referred to as Collins 75A until the 75A-2 came out in 1950. Another theory suggests that a small run of < 200 75A's were made in 1946." Moore has in his remarks: "Early 75A" and shows an image without limiter switch, in the remarks of the 75A-1 he states "Differs from 75A in limiter switch on right side above function knob"
    Further clarification about this matter is still needed.
  • Net weight (2.2 lb = 1 kg)
  • 28.5 kg / 62 lb 12.4 oz (62.775 lb)
  • Price in first year of sale
  • 375.00 $
  • External source of data
  • Eilert Menke
  • Author
  • Model page created by a member from D. See "Data change" for further contributors.

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