• Country
• United States of America (USA)

• Manufacturer / Brand
• Sonora Radio & Telev. Corp.; Chicago (IL)

• Year
• 1947/1948

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 75673

• • alternative name: Sonora Electric Phono

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

• Number of Tubes
• 4

• Valves / Tubes
• 1R5 1U4 1S5 3V4

• Main principle
• Superheterodyne (common); ZF/IF 455 kHz; 2 AF stage(s)

• Tuned circuits
• 6 AM circuit(s)

• Wave bands
• Broadcast only (MW).

• Power type and voltage
• Line / Batteries (any type) / 117; 90, 9 Volt

• Loudspeaker
• Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 4 inch = 10.2 cm

• Material
• Plastics (no bakelite or catalin)

• from Radiomuseum.org
• Model: WDU-233 "All-Arounder" - Sonora Radio & Telev. Corp.;

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

• Dimensions (WHD)
• 12 x 9 x 6 inch / 305 x 229 x 152 mm

• Notes
• Selenium Rectifier. Tuning 535 to 1620 kc. Built-in loop antenna. Plastic carrying handle.

• Price in first year of sale
• 48.85 $

• Source of data
• Collector's Guide to Antique Radios (6th edition)

• Circuit diagram reference
• Rider's Perpetual, Volume 17 = 1948 and before

• Mentioned in
• Radio Retailing (Radio & Television R.) (May 1947 page 15, 44.)

• Literature/Schematics (1)
• Beitman Radio Diagrams, Vol. 08, 1948

• Literature/Schematics (4)
• Photofact Folder, Howard W. SAMS (Set 25, Date 9/47, Folder 4715-27)

• Author
• Model page created by Walter Wiesmüller † May 2012. See "Data change" for further contributors.

• Other Models

• Here you find 338 models, 206 with images and 253 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Sonora Radio & Telev. Corp.; Chicago (IL)