90 "The angry face"

Climax Radio & Television Co, Inc.; Chicago, IL

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  • Year
  • 1936/1937 ?
perfect model
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 35366
    • alternative name: Amplitron

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

 Technical Specifications

  • Number of Tubes
  • 7
  • Main principle
  • Superheterodyne (common); ZF/IF 456 kHz
  • Tuned circuits
  • 7 AM circuit(s)
  • Wave bands
  • Broadcast plus 2 Short Wave bands.
  • Power type and voltage
  • Alternating Current supply (AC) / 106-120 Volt
  • Loudspeaker
  • Electro Magnetic Dynamic LS (moving-coil with field excitation coil)
  • Material
  • Wooden case
  • from Radiomuseum.org
  • Model: 90 "The angry face" - Climax Radio & Television Co,
  • Shape
  • Tablemodel, high profile (upright - NOT Cathedral nor decorative).
  • Notes

  • The Climax model 90 can be called "The angry face" because of its scale (escutcheon), which mostly was round, not oval. Here it is oval and used also the 6G5 or 6E5 as Tuning eye, also called Magic Eye. From sfHobbies.com: "It is built in five layers. The first layer is the outer dial glass, the second layer’s glass with printed band scales and the oval labels “TONE”, VOLUME”, and ”BAND SELECTION”, the third layer is a thick black cardboard (usually faded color), the fourth layer is a blue plastic ring 3/8 inches high (almost invisible from outside; it designed to separate the 3rd and 4th layers and give a blue tint unto the background), and finally the fifth layer is a dial background image printed on a thick paper. Controls are integrated within the dial, which is not a common feature during that period of time."

    This model receives most probably broadcast 550 to 1700 kHz (blue), 1.8 to 6 MHz (red) and 6 to 18 MHz (yellow). Radiolek features some in its catalog 1937 - which is for season 1936/37. I fear we show here a picture (from Stein) with a round scale, which would be right for the tubes, the oval ones use twice 76, not 76 and 75. But in Stein 2008 we find a notice of six tubes and only two bands. See also the console JL with the angry face dial.

  • External source of data
  • Ernst Erb
  • Circuit diagram reference
  • Rider's Perpetual, Volume 7 = 1936 and before

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