• Year
  • 1948
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 72682
    • alternative name: Chicago Radio Lab

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

 Technical Specifications

  • Number of Tubes
  • 9
  • Main principle
  • Superhet with RF-stage; ZF/IF 455/10700 kHz
  • Wave bands
  • Broadcast (BC) and FM or UHF.
  • Details
  • Changer (Record changer)
  • Power type and voltage
  • Alternating Current supply (AC) / 110-120 Volt
  • Loudspeaker
  • Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 12 inch = 30.5 cm
  • Material
  • Wooden case
  • from Radiomuseum.org
  • Model: 9H888R Ch= 9E21 - Zenith Radio Corp.; Chicago,
  • Shape
  • Console with any shape - in general
  • Notes
  • According to SAMS Photofact, Set 43, Folder 25, for chassis 9E21 there are models 9H881, 9H882R, 9H885 and 9H888R but there is at least also model Zenith 9H988R LP (but 9H995 is chassis 9E21Z).
    Operating Frequencies:
    BC 540 to 1600kc
    FM1 42 to 49 mc
    FM2 88 to 108 mc.
  • Circuit diagram reference
  • Rider's Perpetual, Volume 19 = 1949 and before

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