- Country
- United States of America (USA)
- Manufacturer / Brand
- Grebe, A.H. & Co.; Richmond Hill (NY)
- Year
- 1920
- Category
- Radio module pre 1926 (not a part, not a key)
- Radiomuseum.org ID
- 43553
-
- Brand: Synchrophase
Click on the schematic thumbnail to request the schematic as a free document.
- Number of Tubes
- 2
- Valves / Tubes
- VT-Class-I or B_Moorhead-Shaw VT-Class-II or A_Moorhead
- Main principle
- Detector with Vacuum Tube (Valve), no tuner; 1 AF stage(s)
- Wave bands
- - without
- Power type and voltage
- Storage and/or dry batteries
- Loudspeaker
- - For headphones or amp.
- Material
- Wooden case
- from Radiomuseum.org
- Model: RORG - Grebe, A.H. & Co.; Richmond
- Shape
- Tablemodel, Box - most often with Lid (NOT slant panel).
- Notes
-
Detector-Amplifier. External tuner required. The tubes listed are an educated guess. Schematics show a 4 Volt filament supply. Most probably the 101B tube was used. 200 and 201's came only later and need 5 Volts. UV199 for 3.3 Volts were also later.
Grebe RORG Vacuum tube detector and one stage audio amplifier. External tuner is required.
- Price in first year of sale
- 43.00 $
- 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 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)