- Country
- United States of America (USA)
- Manufacturer / Brand
- General Electric Co. (GE); Bridgeport CT, Syracuse NY
- Year
- 1940/1941
- Category
- Broadcast Receiver - or past WW2 Tuner
- Radiomuseum.org ID
- 42375
-
- Brand: Musaphonic
Click on the schematic thumbnail to request the schematic as a free document.
- Number of Tubes
- 6
- Main principle
- Superheterodyne (common); ZF/IF 455 kHz
- Wave bands
- Broadcast plus 2 Short Wave bands.
- Details
- Changer (Record changer)
- Power type and voltage
- Alternating Current supply (AC) / 115-125 Volt
- Loudspeaker
- Permanent or electro-dynamic (moving coil), system not known yet. / Ø 14 inch = 35.6 cm
- Power out
- 4 W (unknown quality)
- Material
- Wooden case
- from Radiomuseum.org
- Model: J-728 - General Electric Co. GE;
- Shape
- Console with any shape - in general
- Dimensions (WHD)
- 35.2 x 35.2 x 16 inch / 894 x 894 x 406 mm
- Notes
-
The GE model J-728 is a Radio-Phonograph Combination console. Models J-718 and J-728 share the same radio chassis but a different cabinet. It might be it is only the color and therefore we keep the picture for J-718 here - until we know more. Reception is broadcast 540 to 1600 kHz and short waves 2.3 to 22 MHz in two bands: 2.3 to 6.9 and 6.9 to 22 MHz. Output is 4 watts undistorted (5.5 max.). There are 3 different transformers possible, all for 110 to 125 volts, but watts depending on cycles: A-6 for 60 cycles, 95 watts, A-5 for 50 cycles, 95 watts and C-2 for 25 cycles, resulting in 105 watts. This model is in Blond Mahogany Veneers.
- External source of data
- Ernst Erb
- Source of data
- The Radio Collector's Directory and Price Guide 1921 - 1965
- Circuit diagram reference
- Rider's Perpetual, Volume 12 = ca. 1941 and before
- Literature/Schematics (1)
- General Electric Radio Service Notes 1939-1942
- Literature/Schematics (3)
- General Electric Folder 13-497-W for 1941.
- Other Models
-
Here you find 2910 models, 2135 with images and 2034 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
All listed radios etc. from General Electric Co. (GE); Bridgeport CT, Syracuse NY