• Country
• United States of America (USA)

• Manufacturer / Brand
• Sears, Roebuck & Co.; Chicago (IL)

• Year
• 1940/1941

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 56140

• • Brand: Silvertone

Click on the schematic thumbnail to request the schematic as a free document.

• Number of Tubes
• 6

• Valves / Tubes
• 1C7G 1H4G 1D5GP 1F7GH 6AB5 6G6G

• Main principle
• Superheterodyne (common); ZF/IF 455 kHz

• Tuned circuits
• 6 AM circuit(s)

• Wave bands
• Broadcast and Short Wave (SW).

• Power type and voltage
• Storage Battery for all (e.g. for car radios and amateur radios) / 6 or 32 Volt

• Loudspeaker
• Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 6 inch = 15.2 cm

• Power out
• 0.5 W (unknown quality)

• Material
• Wooden case

• from Radiomuseum.org
• Model: Silvertone Order= 57F 2421, 2521 or 2621 Ch= 101.602 - Sears, Roebuck & Co.; Chicago

• Shape
• Tablemodel, low profile (big size).

• Dimensions (WHD)
• 19.75 x 10.75 x 9 inch / 502 x 273 x 229 mm

• Notes

• Farm radio. Sync. vibrator for +B.

• Price in first year of sale
• 24.95 $

• External source of data
• Ernst Erb

• Circuit diagram reference
• Rider's Perpetual, Volume 12 = ca. 1941 and before

• Mentioned in
• Table Top Radios Vol. 4 Stein 2003

• Literature/Schematics (1)
• Riders 12-20

• Literature/Schematics (2)
• The Sears Silvertone Catalogs 1930-1942 (page 204)

• Literature/Schematics (3)
• Sears, Roebuck Catalogs (Silvertone) (#181, Fall & Winter 1940/41, page 626.)

• Other Models

• Here you find 5486 models, 3218 with images and 4192 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Sears, Roebuck & Co.; Chicago (IL)