|Year: 1969–1976||Category: Amateur-Receiver (amateur bands, may include broadcast bands)|
|Semiconductors (the count is only for transistors)||Semiconductors present.|
|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)|
|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))|
Model page created by Hinrich Grensemann † 15.5.16. See "Data change" for further contributors.
All listed radios etc. from Heathkit (Brand), Heath Co.; Benton Harbor (MI)
Here you find 651 models, 630 with images and 459 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.