• Country
• United States of America (USA)

• Manufacturer / Brand
• Collins Radio Company; Cedar Rapids (IA)

• Year
• 1952–1954

• Category
• Amateur-Receiver (amateur bands, may include broadcast bands)

• Radiomuseum.org ID
• 69102

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

• Number of Tubes
• 17

• Valves / Tubes
• 6CB6 6BA7 12AT7 6BA7 6BA6 6BA6 6BA6 6AL5 12AX7 6AL5 6AQ5 6BA6 5Y3GT 6BA6 6BA6 6AL5 0A2 6BA6

• Main principle
• Superhet, double/triple conversion; ZF/IF 1500-2500/455 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-3 - Collins Radio Company; Cedar

• Shape
• Boatanchor (heavy military or commercial set >20 kg).

• Dimensions (WHD)
• 21.2 x 12.5 x 13.1 inch / 538 x 318 x 333 mm

• Notes
• Collins 75A-3 Amateur - Band Receiver: Double conversion, AM/CW, NB-FM optional, seven amateur bands from 160 - 10 meters (1,5-2,5 / 3,2-4,2 / 6,8-7,8 / 14-15 / 20,8-21,8 / 26-28 and 28-30 MHz), mechanical 3 kHz filter, optional mechanical 800 Hz filter for CW, four step crystal filter.
  Optional 148C-1 narrow band FM demodulator (6AU6 limiter, 6AL5 freq discriminator), optional 8R-1 crystal calibrator (additional 6 BA6).
  V1 (first RF amp) has been changed from 6CB6 to 6DC6 in sets with s/n above 1573.

• Net weight (2.2 lb = 1 kg)
• 25.5 kg / 56 lb 2.7 oz (56.167 lb)

• Price in first year of sale
• 530.00 $

• External source of data
• Eilert Menke

• Source of data
• Communications Receivers

• Mentioned in
• The Pocket Guide to Collins Amateur Radio Equipment 1946 to 1980

• Literature/Schematics (1)
• Shortwave Receivers - Past & Present (3rd ed.)

• Author
• Model page created by a member from D. See "Data change" for further contributors.

• Other Models

• Here you find 100 models, 77 with images and 35 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Collins Radio Company; Cedar Rapids (IA)