Synchrophase SK4
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
- 43569
-
- Brand: Synchrophase
Click on the schematic thumbnail to request the schematic as a free document.
- Number of Tubes
- 7
- Main principle
- TRF without regeneration
- Tuned circuits
- 5 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: Synchrophase SK4 - Grebe, A.H. & Co.; Richmond
- Notes
- The tube UX245, later named 245 and 45 was introduced in March 1929. Therefore this model can not be earlier.
- External source of data
- Ernst Erb
- Circuit diagram reference
- Rider's Perpetual, Volume 1 = 1931/1934 (for 1919-1931)
- 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)