• Country
• United States of America (USA)

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

• Year
• 1938

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 56408

• • Brand: Silvertone

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

• Number of Tubes
• 8

• Valves / Tubes
• 1D5GP 1C7G 1D5GP 1D5GP 1H6G 1H4G 1H4G 4A6G

• Main principle
• Superhet with RF-stage; ZF/IF 465 kHz; 4 AF stage(s)

• Tuned circuits
• 8 AM circuit(s)

• Wave bands
• Broadcast, Short Wave(s) and Police.

• Power type and voltage
• Storage and/or dry batteries / 45 x 2 & 4 or 4.5 & 1.5 x 2 & 1.25 x 2 Volt

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

• Power out
• 0.45 W (0.9 W max.)

• Material
• Wooden case

• from Radiomuseum.org
• Model: Silvertone 4628A Ch= 101.472X - Sears, Roebuck & Co.; Chicago

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

• Dimensions (WHD)
• 23 x 12.4 x 11.9 inch / 584 x 315 x 302 mm

• Notes

• The Sears Silvertone 4628A is a battery operated 8 tube BC, Police and SW band receiver.

  Band Frequency Ranges are as follows:
  BC Band (Band "A").............540 - 1780kHz
  Police Band (Band "P")........1.76 - 6.2MHz
  SW Band (Band "F")............5.975 - 18.5MHz

  Uses Qty(2) 45 volt "B" batteries, Qty(1) 4.5 volt "A" dry battery or Qty(1) 4 volt "A" storage battery and Qty(2) 1.5 volt dry batteries.  The two 1.5v batteries are used only to power the two dial lights.  The dial lights are activated by pushing the volume control down.  Also uses Qty(2) 1.25v bias cells, used to bias the 1H4G audio driver circuit.

  Has 2 IF stages and 4 AF stages, which include a push-pull output circuit.  Has a three position tone control.

  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).

• External source of data
• Ernst Erb

• Source of data
• The Sears Silvertone Catalogs 1930-1942

• Circuit diagram reference
• Rider's Perpetual, Volume 10 = 1939 and before

• Mentioned in
• Machine Age to Jet Age III

• Literature/Schematics (1)
• Rider's Perpetual, Volume 10 = 1939 and before (Riders (Sears) 10-3, 4)

• 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)