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Superdyne 305 Table

Superdyne 305; Tuska Co., C. D.; (ID = 1397798) Radio Superdyne 305; Tuska Co., C. D.; (ID = 1397799) Radio
Superdyne 305; Tuska Co., C. D.; (ID = 1397800) Radio Superdyne 305; Tuska Co., C. D.; (ID = 1397801) Radio
Superdyne 305; Tuska Co., C. D.; (ID = 1397802) Radio Superdyne 305; Tuska Co., C. D.; (ID = 2096181) Radio
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Superdyne 305; Tuska Co., C. D.; (ID = 1397798) Radio
Tuska Co., C. D.;: Superdyne 305 [Radio] ID = 1397798 933x655
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For model Superdyne 305 Table, Tuska Co., C. D.; Hartfort (CT):
Old Ebay auction
 
Country:  United States of America (USA)
Manufacturer / Brand:  Tuska Co., C. D.; Hartfort (CT)
Brand
 
Superdyne
Year: 1925 Category: Broadcast Receiver - or past WW2 Tuner
Valves / Tubes 4: UV201A UV201A UV201A UV201A
Main principle TRF with regeneration; 2 AF stage(s)
Wave bands Broadcast only (MW).
Details
Power type and voltage Storage and/or dry batteries / 6, 45, 45 Volt
Loudspeaker - This model requires external speaker(s).
Power out
from Radiomuseum.org Model: Superdyne 305 [Table] - Tuska Co., C. D.; Hartfort CT
Material Wooden case
Shape Tablemodel, Box - most often with Lid (NOT slant panel).
Dimensions (WHD) 24 x 9.5 x 14 inch / 610 x 241 x 356 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 150.00 $
Collectors' prices  
External source of data Ernst Erb
Source of data Radio Collector`s Guide 1921-1932
Mentioned in The Radio Collector's Directory and Price Guide 1921 - 1965


All listed radios etc. from Tuska Co., C. D.; Hartfort (CT)
Here you find 19 models, 15 with images and 4 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.



  
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