No. 4052 (Model 6)

Image Courtesy of Grant Kornberg, Technogallerie

Image Courtesy of Grant Kornberg, Technogallerie

Image Courtesy of Grant Kornberg, Technogallerie

Image Courtesy of Grant Kornberg, Technogallerie

Type 4052 Model 6

Image Courtesy of John Jenkins | Visit the SparkMuseum!

Image Courtesy of Grant Kornberg, Technogallerie

Image Courtesy of Grant Kornberg, Technogallerie

Image Courtesy of Grant Kornberg, Technogallerie

Image Courtesy of Grant Kornberg, Technogallerie

The Atwater Kent No. 4052 (Model 6) Receiving Set was a significant evolution in the breadboard line, introduced in 1923 to meet consumer demand for greater sensitivity and volume as the number of broadcasting stations rapidly increased. This set was a four-tube design, representing the first major component upgrade over the three-tube Model 2 and Model 3. Its circuit was a Tuned Radio Frequency (TRF) configuration featuring one Radio Frequency (RF) amplification stage, a detector, and two stages of Audio Frequency (AF) amplification. The tube line-up utilized one UV-200 detector tube and three UV-201a tubes for the amplification stages (one RF and two AF). Board dimensions are 24-1/2" x 8-1/2".