7780 Model 21 Dry Cell Set
Atwater Kent Mfg. Co.; Philadelphia, USA
- Country
- United States of America (USA)
- Manufacturer / Brand
- Atwater Kent Mfg. Co.; Philadelphia, USA
- Year
- 1925
- Category
- Broadcast Receiver - or past WW2 Tuner
- Radiomuseum.org ID
- 74638
Click on the schematic thumbnail to request the schematic as a free document.
- Number of Tubes
- 5
- Main principle
- TRF without regeneration
- Tuned circuits
- 3 AM circuit(s)
- Wave bands
- Broadcast only (MW).
- Power type and voltage
- Dry Batteries
- Loudspeaker
- - For headphones or amp.
- Material
- Wooden case
- from Radiomuseum.org
- Model: 7780 Model 21 Dry Cell Set - Atwater Kent Mfg. Co.;
- Shape
- Tablemodel, Box - most often with Lid (NOT slant panel).
- Notes
- dry cell version of model #20C; insufficient performance due to the unreliable tubes caused ca 7208 sets to return to the factory (out of 17584 produced!); since probably the majority was converted to standard 01 tubes, the set is rare;
- Source of data
- A.Atwater Kent, The Man, 2002
- Mentioned in
- Radio Manufacturers of the 1920s, Vol 1
- Author
- Model page created by Konrad Birkner † 12.08.2014. See "Data change" for further contributors.
- Other Models
-
Here you find 507 models, 330 with images and 332 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
All listed radios etc. from Atwater Kent Mfg. Co.; Philadelphia, USA