|Year: 1934/1935||Type: Broadcast Receiver - or past WW2 Tuner|
|Valves / Tubes||5: 951 230 951 232 233 30_Ballast|
|Principle||Super-Heterodyne (Super in general); ZF/IF 175 kHz; 2 AF stage(s)|
|Tuned circuits||6 AM circuit(s)|
|Wave bands||Broadcast and Short Wave (SW).|
|Power type and voltage||Storage and/or dry batteries / 2 to 3 & -3 & -4.5 & 3 x 45 Volt|
|Loudspeaker||Magnetic loudspeaker (reed) generic.|
|from Radiomuseum.org||Model: Silvertone 1931 - Sears, Roebuck & Co.; Chicago|
The Sears Silvertone 1931 is a battery operated 5 tube BC and SW band receiver. Uses ballast tube 30. Riders states a 480kHz IF for model 1850 but Sears Silvertone Service Manual 1928 thru 1936 states 175kHz IF.
Band Frequency Ranges are as follows:
Chassis and schematic used in this model also used in models 1850, 1850A, 1851, 1862, 1868, 1868A, 1870, 1921 and 7147, with some models combining the power switch with the tone control and thus having 4 knobs instead of 5.
See details and summaries about Sears catalogs etc. This model was manufactured for Sears by Colonial Radio Corp., Buffalo, NY (Sears Manufacturer Source Number Code 101).
|Source of data||Silvertone Radios, Service Inf. 1928 thru 1936|
|Literature/Schematics (1)||Silvertone Radios, Service Inf. 1928 thru 1936 (Pages 551 to 555)|
Model page created by John Kusching. See "Data change" for further contributors.
All listed radios etc. from Sears, Roebuck & Co.; Chicago (IL)
Here you find 4007 models, 2230 with images and 2955 with schematics.