Signal Shifter 9-1090G, 9-1090B

Meissner Mfg. Div., Maguire Industries, Inc. (IL)

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  • Year
  • 1947 ?
  • Category
  • Amateur Equipment (Other, but not Key)
  • Radiomuseum.org ID
  • 337028

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

 Technical Specifications

  • Number of Tubes
  • 5
  • Wave bands
  • Wave Bands given in the notes.
  • Power type and voltage
  • Alternating Current supply (AC) / 110 Volt
  • Loudspeaker
  • - - No sound reproduction output.
  • Power out
  • 6 W (unknown quality)
  • Material
  • Metal case
  • from Radiomuseum.org
  • Model: Signal Shifter 9-1090G, 9-1090B - Meissner Mfg. Div., Maguire
  • Shape
  • Tablemodel, Box - most often with Lid (NOT slant panel).
  • Dimensions (WHD)
  • 13.25 x 8.75 x 13.8125 inch / 337 x 222 x 351 mm
  • Notes

  • The Meissner model 9-1090 is a VFO (variable frequency oscillator) with an RF amplifier that was typically used as an exciter for a larger transmitter.  RF output is "in excess of 6 watts". Output is link coupled.  The coils for the six ranges (amateur bands of 10, 11, 15, 20, 40, and 80 meters) are turret mounted with a six-position selector.  An eye tube serves as a tuning and keying indicator. Crystal control is an option. The tuning control is graduated from 0 to 500 and is designed to overlap the bands by 2% on either side.

    The tube count in the advertisements is 6 which includes one voltage regulator, VR105 for oscillator screen stability, not normally counted in RMorg.

    The unit was available as a 9-1090G (gray) or as 9-1090B  (black).

  • Price in first year of sale
  • 120.00 USD
  • Mentioned in
  • - - Manufacturers Literature (1947 Meissner catalog)
  • Author
  • Model page created by Rich Post. See "Data change" for further contributors.

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