• Country
• United States of America (USA)

• Manufacturer / Brand
• Zenith Radio Corp.; Chicago, IL

• Year
• 1937/1938

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 67995

• • alternative name: Chicago Radio Lab

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

• Number of Tubes
• 7

• Valves / Tubes
• 6A8G 6K7G 6H6G 6F5G 6T5 6F6G 5Y4G

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

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

• Power type and voltage
• Alternating Current supply (AC) / 25-133 Hz, 110-250 Volt

• Loudspeaker
• Electro Magnetic Dynamic LS (moving-coil with field excitation coil) / Ø 8 inch = 20.3 cm

• Material
• Wooden case

• from Radiomuseum.org
• Model: 7-S-232AT "Waltons" Ch=5709AT - Zenith Radio Corp.; Chicago,

• Shape
• Tablemodel, Tombstone = decorative upright, not cathedral but can have rounded edges.

• Dimensions (WHD)
• 16.9 x 23.8 x 12.4 inch / 429 x 605 x 315 mm

• Notes

• The popular set from the TV series "The Waltons".
  
  The cabinet is similar for the following "Walton" models:
  12-S-232
    9-S-232
    9-S-232AT
    8-A-232
    7-S-232
    7-S-232T
    7-J-232
    7-J-232T
  They are looking all the same. That's why all of them are called "Waltons" although only one thereof was in the play.

• External source of data
• Ernst Erb

• Circuit diagram reference
• Rider's Perpetual, Volume 9 = 1938 and before

• Other Models

• Here you find 4496 models, 4101 with images and 3615 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Zenith Radio Corp.; Chicago, IL