• Country
• United States of America (USA)

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

• Year
• 1956

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 83166

• • Brand: Silvertone

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

• Number of Tubes
• 5

• Valves / Tubes
• 1U4 1R5 1U4 1U5 3V4

• Main principle
• Superhet with RF-stage; ZF/IF 455 kHz; 2 AF stage(s)

• Tuned circuits
• 7 AM circuit(s)

• Wave bands
• Broadcast only (MW).

• Power type and voltage
• Line / Batteries (any type) / AC/DC 110-120/ 90 & 9 Volt

• Loudspeaker
• Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) - elliptical

• from Radiomuseum.org
• Model: Silvertone 7222 Ch= 528.48000 - Sears, Roebuck & Co.; Chicago

• Shape
• Portable set > 8 inch (also usable without mains)

• Dimensions (WHD)
• 11.25 x 9.5 x 6.5 inch / 286 x 241 x 165 mm

• Notes

• Selenium Rectifier. Selenium Rectifier; 4" x 6" PM elliptical speaker.
  The Sears, Roebuck & Co. Model Silverton 7222 Chassis 528.48000 is a Three Power Portable AM Receiver.

• Circuit diagram reference
• Beitman Radio Diagrams Vol. 17, 1957

• Literature/Schematics (1)
• Photofact Folder, Howard W. SAMS (Date 3-57, Set 350, Folder 14)

• Literature/Schematics (3)
• Sears, Roebuck Catalogs (Silvertone) (page 869)

• Author
• Model page created by Egon Penker. See "Data change" for further contributors.

• Other Models

• Here you find 5486 models, 3219 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)