No. 4120 (Model 6x)
The Atwater Kent No. 4120 Model 6X exemplifies the company's strategy of offering modular, consumer-friendly radio upgrades in a dynamic market. Built on the standard No. 3975 board (8-1/2"x24-1/2") and sharing the same RF amplifier arrangement as the No. 4052 model, the 4120 was designed for versatility. The key difference in the 4120 lies in its use of the No. 3902 Detector unit instead of a full two-stage audio amplifier. This simplification meant the set functioned as a high-quality receiver requiring the user to connect their own external amplifier and loudspeaker. Original price for the set was $45.00.










Image Courtesy of Ray Thompson | AK Radio Historian
Image Courtesy of Grant Kornberg, Technogallerie
Image Courtesy of Grant Kornberg, Technogallerie
Image Courtesy of Grant Kornberg, Technogallerie
Image Courtesy of Grant Kornberg, Technogallerie
