General Coverage Receiver GR-78

• Country
• United States of America (USA)

• Manufacturer / Brand
• Heathkit (Brand), Heath Co.; Benton Harbor (MI)

• Year
• 1969–1976

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

• Radiomuseum.org ID
• 79932

• • alternative name: Heath Company

• Picture
• Schematics

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

• Number of Transistors
• Semiconductors present.

• Semiconductors

• Main principle
• Superhet, double/triple conversion; ZF/IF 455/4034 kHz

• Wave bands
• Broadcast, Long Wave and more than two Short Wave bands.

• Power type and voltage
• Line / Storage batteries (perhaps also batteries) / 110; 220 / 9 Volt

• Loudspeaker
• Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 8 cm = 3.1 inch

• Power out
• 0.3 W (unknown quality)

• Material
• Metal case

• from Radiomuseum.org
• Model: General Coverage Receiver GR-78 - Heathkit Brand, Heath Co.;

• Shape
• Tablemodel, with any shape - general.

• Dimensions (WHD)
• 287 x 156 x 215 mm / 11.3 x 6.1 x 8.5 inch

• Notes
• Heathkit Communications-Receiver GR-78.
  Frequency range: 200-400 kHz, 550-1300 kHz, 1.3-3.0 MHz, 3.0-7.5 MHz, 7.5-18 MHz, 18-30 MHz; Modes: AM, CW, SSB (BFO); built in 9-V-NiCad-Battery; external power supply 12-15 VDC possible.
  In Germany price kitform 675 DM, ready for use 945 DM.

• Net weight (2.2 lb = 1 kg)
• 5 kg / 11 lb 0.2 oz (11.013 lb)

• Price in first year of sale
• 142.00 $

• Source of data
• Heathkit: A Guide to Amateur Radio Products

• Mentioned in
• -- Original-techn. papers. (Heathkit Katalog 1971/72 (DL))

• Author
• Model page created by Hinrich Grensemann † 15.5.16. See "Data change" for further contributors.

• Other Models

• Here you find 713 models, 697 with images and 503 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Heathkit (Brand), Heath Co.; Benton Harbor (MI)