- Country
- United States of America (USA)
- Manufacturer / Brand
- Grebe, A.H. & Co.; Richmond Hill (NY)
- Year
- 1928
- Category
- Broadcast Receiver - or past WW2 Tuner
- Radiomuseum.org ID
- 43485
-
- Brand: Synchrophase
Click on the schematic thumbnail to request the schematic as a free document.
- Number of Tubes
- 11
- Main principle
- TRF without regeneration; 3 AF stage(s)
- Tuned circuits
- 4 AM circuit(s)
- Power type and voltage
- Alternating Current supply (AC) / 110;120 Volt
- Loudspeaker
- Electro Magnetic Dynamic LS (moving-coil with field excitation coil)
- Material
- Wooden case
- from Radiomuseum.org
- Model: 428 - Grebe, A.H. & Co.; Richmond
- Shape
- Console with any shape - in general
- Notes
- Employs A.C.Six Receiver, Push Pull Amplifier 412, each with its own power supply; Output Transformer419 and Dynamic Speaker Type 400.
- Price in first year of sale
- 510.00 $
- External source of data
- Ernst Erb
- Circuit diagram reference
- Rider's Perpetual, Volume 1 = 1931/1934 (for 1919-1931)
- Mentioned in
- Radio Manufacturers of the 1920's, Vol. 2
- Other Models
-
Here you find 188 models, 124 with images and 61 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)