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4445 Model 9 variometer tuned

4445 Model 9; Atwater Kent Mfg. Co (ID = 266489) Radio 4445 Model 9; Atwater Kent Mfg. Co (ID = 718875) Radio
4445 Model 9; Atwater Kent Mfg. Co (ID = 869730) Radio 4445 Model 9; Atwater Kent Mfg. Co (ID = 1243234) Radio
4445 Model 9; Atwater Kent Mfg. Co (ID = 1257837) Radio 4445 Model 9; Atwater Kent Mfg. Co (ID = 1257838) Radio
4445 Model 9; Atwater Kent Mfg. Co (ID = 1257839) Radio 4445 Model 9; Atwater Kent Mfg. Co (ID = 1257840) Radio
4445 Model 9; Atwater Kent Mfg. Co (ID = 1257841) Radio 4445 Model 9; Atwater Kent Mfg. Co (ID = 1257842) Radio
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4445 Model 9; Atwater Kent Mfg. Co (ID = 266489) Radio
Atwater Kent Mfg. Co: 4445 Model 9 [Radio] ID = 266489 933x518
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For model 4445 Model 9 variometer tuned, Atwater Kent Mfg. Co.; Philadelphia, USA:
By courtesy of William Kendrick, USA
 
Country:  United States of America (USA)
Manufacturer / Brand:  Atwater Kent Mfg. Co.; Philadelphia, USA
Year: 1923 Category: Broadcast Receiver - or past WW2 Tuner
Valves / Tubes 4: UV201A UV201A or UV200 UV201A UV201A
Main principle TRF without regeneration; 2 AF stage(s)
Tuned circuits 2 AM circuit(s)
Wave bands Broadcast only (MW).
Details
Power type and voltage Storage and/or dry batteries
Loudspeaker - This model requires external speaker(s).
Power out
from Radiomuseum.org Model: 4445 Model 9 [variometer tuned] - Atwater Kent Mfg. Co.;
Material Wooden case, TUBES VISIBLE.
Shape Tablemodel, with any shape - general.
Notes Breadboard. Two dials (primary tuning control knobs) Breadboard consisting of two type 11 tuners, RF-amp, TA 3812 Det./Amp; even regeneration was possible (though not designed for) through plate coupling (with a very good front tube);
Price in first year of sale 68.00 $
Collectors' prices  
External source of data Ernst Erb
Source of data Radio Collector`s Guide 1921-1932
Circuit diagram reference Rider's Perpetual, Volume 1 = 1931/1934 (for 1919-1931)
Mentioned in Radio Manufacturers of the 1920s, Vol 1 (Bunis 4)
Literature/Schematics (1) A.Atwater Kent, The Man, 2002


All listed radios etc. from Atwater Kent Mfg. Co.; Philadelphia, USA
Here you find 500 models, 314 with images and 324 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.





  
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