• Country
• United States of America (USA)

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

• Year
• 1941/1942

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 58335

• • alternative name: Sonora Electric Phono

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

• Number of Tubes
• 7

• Valves / Tubes
• 6SD7GT or 6SG7 6J5GT 6SK7GT 6SQ7GT 6SQ7GT 6K6GT 5Y3GT or 5Y3G

• Main principle
• Superheterodyne (common); ZF/IF 456 kHz

• Tuned circuits
• 6 AM circuit(s)

• Wave bands
• Broadcast and Short Wave (SW).

• Power type and voltage
• Alternating Current supply (AC) / 117 Volt

• Loudspeaker
• Electro Magnetic Dynamic LS (moving-coil with field excitation coil) / Ø 6.5 inch = 16.5 cm

• Material
• Wooden case

• from Radiomuseum.org
• Model: LW-181 Super Seven - Sonora Radio & Telev. Corp.;

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

• Dimensions (WHD)
• 17.25 x 9.75 x 9.5 inch / 438 x 248 x 241 mm

• Notes

• Built-in loop antenna; AVC; Phono-FM-television connection (input).

• External source of data
• Ernst Erb

• Circuit diagram reference
• Rider's Perpetual, Volume 14 = 1944 = before 1943

• Mentioned in
• Machine Age to Jet Age II (page 279.)

• Literature/Schematics (2)
• Radio Retailing (Radio & Television R.)

• Literature/Schematics (3)
• -- Original prospect or advert (The Sonora Folder for 1942.)

• 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)