Superdyne 305 Upright Model
Tuska Co., The C.D.; Hartford, CT
- Country
- United States of America (USA)
- Manufacturer / Brand
- Tuska Co., The C.D.; Hartford, CT
- Year
- 1925
- Category
- Broadcast Receiver - or past WW2 Tuner
- Radiomuseum.org ID
- 63764
-
- Brand: Superdyne
1925 advertisement
- Number of Tubes
- 4
- Main principle
- TRF with regeneration; 2 AF stage(s)
- Wave bands
- Broadcast only (MW).
- Power type and voltage
- Storage and/or dry batteries / 6, 45, 45 Volt
- Loudspeaker
- Horn
- Material
- Wooden case
- from Radiomuseum.org
- Model: Superdyne 305 [Upright Model] - Tuska Co., The C.D.; Hartford,
- Shape
- Console, Lowboy (legs < 50 %).
- Dimensions (WHD)
- 26 x 42 x 16 inch / 660 x 1067 x 406 mm
- Notes
-
Two dials (primary tuning control knobs)
Possibly the earliest true application of negative feedback in RF circuits was Tuska's Superdyne, which had an RF circuit with the familiar tickler coil upside down. In 1923, Tuska and Robert Miner developed a modification of the original regeneration circuit which was called the "Superdyne". The pair had the idea of reversing the regeneration to squelch oscillations in the circuit.
- Price in first year of sale
- 275.00 $
- External source of data
- Ernst Erb
- Source of data
- Radio Collector`s Guide 1921-1932
- Mentioned in
- Guide to Old Radios
- Other Models
-
Here you find 20 models, 17 with images and 5 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
All listed radios etc. from Tuska Co., The C.D.; Hartford, CT