• Country
• United States of America (USA)

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

• Year
• 1932

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 55862

• • Brand: Silvertone

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

• Number of Tubes
• 7

• Valves / Tubes
• 232 230 232 232 230 232 233

• Number of Transistors

• Semiconductors
• 31_Ballast

• Main principle
• Superheterodyne (common); ZF/IF 175 kHz

• Tuned circuits
• 6 AM circuit(s)

• Wave bands
• Broadcast plus 2 Short Wave bands.

• Power type and voltage
• Dry Batteries / 135 & 6 & 4.5 & 2.3 & -4.5 & -1.5 Volt

• Loudspeaker
• Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 8 inch = 20.3 cm

• Material
• Wooden case

• from Radiomuseum.org
• Model: Silvertone 1570 - Sears, Roebuck & Co.; Chicago

• Shape
• Table-Cathedral-Type (upright, round top or gothic arch, not rounded edges only).

• Notes
• Ballast - control tube 31.

• External source of data
• Ernst Erb

• Circuit diagram reference
• Rider's Perpetual, Volume 3 = 1933 and before

• Literature/Schematics (1)
• Riders 3-6, 7 ; 7-11

• Other Models

• Here you find 5464 models, 3199 with images and 4169 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Sears, Roebuck & Co.; Chicago (IL)