• Country
• United States of America (USA)

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

• Year
• 1935

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 68130

• • alternative name: Chicago Radio Lab

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

• Number of Tubes
• 12

• Valves / Tubes
• 6D6 6A7 6D6 6D6 76 76 76 76 76 42 42 5Z3

• Main principle
• Superhet with RF-stage; ZF/IF 485 kHz

• Wave bands
• Broadcast plus more than 2 Short Wave bands.

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

• Loudspeaker
• 2 Loudspeakers

• Material
• Wooden case

• from Radiomuseum.org
• Model: 990 Ch= 1201 - Zenith Radio Corp.; Chicago,

• Shape
• Console with any shape - in general

• Notes

• The Zenith 990 receives 5 bands, as follows:

  A	550	1500	kHz	AM Broadcast
  B	1.5	4.0	MHz	Police
  C	4	10	MHz	Shortwave (1)
  D	9	22	MHz	Shortwave (2)
  E	18	44	MHz	Shortwave (3)

   

  Speakers include a 6-inch EM tweeter and a 12-inch EM woofer.

• External source of data
• Ernst Erb

• Source of data
• The Radio Collector's Directory and Price Guide 1921 - 1965

• Circuit diagram reference
• Rider's Perpetual, Volume 6 = 1935 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