In 1930, Atwater Kent introduced their first superheterodyne radio — the Model 72. By 1931, Atwater Kent's entire lineup of indoor radios would use a superheterodyne design. This is not that radio. No, the Model 70, along with its 1930 siblings, 74, 75, and 76, would be the last of Atwater Kent's tuned radio frequency (TRF) designs. Atwater Kent model 55 or 55c Most of us can't hear below about 20 cycles, and with good hearing we might be able to hear up to 12 kilocycles. However, there is some distortion I believe may be generated in the 27 tube detector stage." "In reading Atwater Kent's owners manual on this ARBE III Manual; Radios For Sale. Radiola III; Freshman Masterpiece; Crosley 50; Crosley 52; Crosley Super Trirdyne; Atwater Kent Model 33; Atwater Kent Model 20C; Westinghouse Aeriola Jr; Speakers For Sale. Atwater Kent Model E3; Peerless Reproducer; RCA UZ1325 Horn; Parts. Transformers; Tube Display Stands/Tube Cartons; AK ID Tags; WD-11UX ATWATER KENT RADIO Model 356 Information Card - $5.20. Atwater Kent Radio Model 356 Information Card. Excellent condition. 143170671203. ATWATER KENT RADIO Model 356 Information Card - $5.20. 1928 ATWATER KENT RADIO SERVICE MANUAL & 1928 & 1931 Parts Price Books Nr Mint ! $200.00 Buy It Now Atwater Kent Breadboard Tube Radio Model 12 1923 . Atwater Kent Breadboard Tube Radio Model 12 1923 i have included the repair manual on a cd for you with a values list. atwater kent brass radio plaque measures 4 1/4" long x " tallready to mount. Atwater Kent model 21 (7780) 1925 5-tube TRF battery-operated radio manufactured by Atwater Kent Mfg. Co. in Philadelphia PA. This is the rare dry-cell version of the model 20 Compact and used UV199 tubes rather than the UX-201A. 17,584 were sold in 1925 but 7,208 were returned in 1926 when Atwater Kent recalled them. Model 20 #4640. The parts used in #4640 are substantiallyvthe same as used in #7570 shown above, with the following exceptions. 1st and 2nd a-f transforme