• Country
• United States of America (USA)

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

• Year
• 1951 ?

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 68222

• • alternative name: Chicago Radio Lab

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

• Number of Tubes
• 6

• Valves / Tubes
• 12BE6 6BJ6 6AQ6 12J5 50C5 35W4

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

• Tuned circuits
• 6 AM circuit(s)

• Wave bands
• Broadcast only (MW).

• Details
• Changer (Record changer)

• Power type and voltage
• Alternating Current supply (AC) / 60 Hz, 117V = 110 -120 Volt

• Loudspeaker
• Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 5.25 inch = 13.3 cm

• Material
• Wooden case

• from Radiomuseum.org
• Model: H665R Ch= 6H01 - Zenith Radio Corp.; Chicago,

• Shape
• Tablemodel, with any shape - general.

• Notes

• Zenith model H665R is a radio - phono combination superheterodyne receiver with loop antenna.

• External source of data
• Ernst Erb

• Circuit diagram reference
• Rider's Perpetual, Volume 21, Copyright 1950

• Literature/Schematics (1)
• Beitman Radio Diagrams, Vol. 11, 1951

• Literature/Schematics (2)
• Photofact Folder, Howard W. SAMS (Set 125 Folder 13 dated 3-51)

• Other Models

• Here you find 4496 models, 4100 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