75A

Collins Radio Company; Cedar Rapids (IA)

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  • Year
  • 1946/1947
  • Category
  • Amateur-Receiver (amateur bands, may include broadcast bands)
  • Radiomuseum.org ID
  • 172339

 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).
  • Power out
  • 2.5 W (unknown quality)
  • Material
  • Metal case
  • from Radiomuseum.org
  • Model: 75A - Collins Radio Company; Cedar
  • Shape
  • Tablemodel, low profile (big size).
  • Dimensions (WHD)
  • 536 x 311 x 352 mm / 21.1 x 12.2 x 13.9 inch
  • Notes

  • Collins 75A 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.
    Early 54A-1, the early sets came without limiter switch at the right above function knob.
    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 75-A1 he states "Differs from 75A in limiter switch on right side above function knob"
    Further clarification about this matter is still needed. Anyway first advertised in Electronics, December, 1946, page 256. No limiter switch visible in the image in the ad.

  • Net weight (2.2 lb = 1 kg)
  • 25.8 kg / 56 lb 13.3 oz (56.828 lb)
  • Author
  • Model page created by Martin Bösch. See "Data change" for further contributors.

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