285 A Ch= SK4 Super Synchrophase
Grebe, A.H. & Co.; Richmond Hill (NY)
- Country
- United States of America (USA)
- Manufacturer / Brand
- Grebe, A.H. & Co.; Richmond Hill (NY)
- Year
- 1929
- Category
- Broadcast Receiver - or past WW2 Tuner
- Radiomuseum.org ID
- 43570
-
- Brand: Synchrophase
Click on the schematic thumbnail to request the schematic as a free document.
- Number of Tubes
- 7
- Main principle
- TRF without regeneration; Screengrid 1926-1935
- Tuned circuits
- 6 AM circuit(s)
- Wave bands
- Broadcast only (MW).
- Power type and voltage
- Alternating Current supply (AC) / 117 Volt
- Loudspeaker
- Electro Magnetic Dynamic LS (moving-coil with field excitation coil)
- Material
- Wooden case
- from Radiomuseum.org
- Model: 285 A Ch= SK4 Super Synchrophase - Grebe, A.H. & Co.; Richmond
- Shape
- Console, Highboy (legs > 50 %).
- Price in first year of sale
- 285.00 $
- External source of data
- Ernst Erb
- Circuit diagram reference
- Rider's Perpetual, Volume 3 = 1933 and before
- Mentioned in
- Official Radio Service Manual and Complete Directory of all Commercial Wiring Diagrams (p.188 for chassis SK4)
- Literature/Schematics (1)
- Radio Broadcast, Apr 1930, p. 346
- Literature/Schematics (2)
- A Blast from the Past (p.38)
- Literature/Schematics (3)
- Radio Collector`s Guide 1921-1932
- Literature/Schematics (4)
- The Radio Collector's Directory and Price Guide 1921 - 1965
- Other Models
-
Here you find 188 models, 124 with images and 60 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
All listed radios etc. from Grebe, A.H. & Co.; Richmond Hill (NY)