• Country
• United States of America (USA)

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

• Year
• 1936

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 56058

• • Brand: Silvertone

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

• Number of Tubes
• 5

• Valves / Tubes
• 1C6 1A4 1B5 230 950 1G1

• Main principle
• Superheterodyne (common); ZF/IF 175 kHz; 3 AF stage(s)

• Tuned circuits
• 6 AM circuit(s)

• Wave bands
• Broadcast, Long Wave and Short Wave.

• Power type and voltage
• Storage and/or dry batteries / 2V or 3V & 135 Volt

• Loudspeaker
• Magnetic loudspeaker (reed) generic. / Ø 6.5 inch = 16.5 cm

• Material
• Wooden case

• from Radiomuseum.org
• Model: Silvertone 1947 Order= 57LM 1947 - Sears, Roebuck & Co.; Chicago

• Shape
• Tablemodel, Tombstone = decorative upright, not cathedral but can have rounded edges.

• Dimensions (WHD)
• 18.5 x 19 x 10.8 inch / 470 x 483 x 274 mm

• Notes

• The Sears Silvertone 1947 is a battery operated 5 tube BC, Longwave and SW band receiver.  Has AGC and tone control. Uses 1G1 ballast when using 3V dry "A" batteries.  Also can use 2V Storage "A" batteries by replacing ballast tube with shorting jumper.

  Band Frequency Ranges are as follows:
  BC Band (Band B)..................545-1600kHz
  Longwave Band (Band A)........225-440kHz
  SW Band (Band C).................5.9-15.5MHz

  The chassis and schematic of this model is also used in Sears Silvertone model 1948.

  Catalog States: Cabinet of modern design with instrument panel of straight grained and striped walnut veneers.  Balance of cabinet is selected hardwoods, carefully matched.  Beautiful Satin finish. 

  Order number 57LM 1947 with tubes and 6-month Dry "A" and three "B" batteries Cash Price $31.95 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).

• Price in first year of sale
• 31.95 $

• External source of data
• Ernst Erb

• Source of data
• The Radio Collector's Directory and Price Guide 1921 - 1965

• Circuit diagram reference
• Rider's Perpetual, Volume 8 = 1937 and before

• Mentioned in
• The Sears Silvertone Catalogs 1930-1942 (page 100)

• Literature/Schematics (1)
• Machine Age to Jet Age II (Riders Sears 8-7, 8)

• Literature/Schematics (2)
• Silvertone Radios, Service Inf. 1928 thru 1936 (Pages 864 to 870)

• Literature/Schematics (3)
• Sears, Roebuck Catalogs (Silvertone) (# 172, Spring & Summer 1936, page 542.)

• Literature/Schematics (4)
• Cathedral & Tombstone Radios (page 242.)

• Other Models

• Here you find 5479 models, 3211 with images and 4185 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Sears, Roebuck & Co.; Chicago (IL)