• Country
• United States of America (USA)

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

• Year
• 1953 ?

• Category
• Television Receiver (TV) or Monitor

• Radiomuseum.org ID
• 359641

• • alternative name: Chicago Radio Lab

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

• Number of Tubes
• 21

• Valves / Tubes
• 6BK7 6U8 6CB6 6CB6 6CB6 6U8 12AU7 12AX7 6BN6 6BK5 6BE6 6AH4GT 6AQ7GT 6SN7GT 6CD6G 6V3 1B3GT 1X2A 5U4G 5U4G 21FP4A

• Main principle
• Superhet with RF-stage

• Wave bands
• Wave Bands given in the notes.

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

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

• Material
• Plastics (no bakelite or catalin)

• from Radiomuseum.org
• Model: K2290R Ch= 21K20 , 10H20Z - Zenith Radio Corp.; Chicago,

• Shape
• Tablemodel, with any shape - general.

• Notes

• Zenith model K2290E is a 21” b/w TV with US standard VHF tuner channels 2 thru 13. Equipped with chassis 21K20, Radio chassis 10H20Z, VHF tuner S-18770 and picture tube 21FP4A.
  Automatic One-Knob .

• Literature/Schematics (1)
• Photofact Folder, Howard W. SAMS (Set 187, folder 14, dated 12-52)

• Author
• Model page created by Dirk Taekels. See "Data change" for further contributors.

• Other Models

• Here you find 4513 models, 4102 with images and 3644 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Zenith Radio Corp.; Chicago, IL