• Year
  • 1933
  • Category
  • Commercial Receiver (may include amateur bands)
  • Radiomuseum.org ID
  • 127373

 Technical Specifications

  • Number of Tubes
  • 9
  • Main principle
  • Superhet, double/triple conversion; ZF/IF 465/175 kHz
  • Power type and voltage
  • Alternating Current supply (AC)
  • Loudspeaker
  • - For headphones or amp.
  • Power out
  • 5 W (unknown quality)
  • Material
  • Metal case
  • from Radiomuseum.org
  • Model: 9-33 - Sargent Co., E.M.; Oakland, CA
  • Shape
  • Tablemodel, low profile (big size).
  • Notes
  • May be the first dual conversion receiver. Four RF bands, coverage not known. 465KHz first IF, 175KHz second IF; tunable HFO. Bal/unbal, three terminal antenna input. Bandspread control rotated the stator of the tuning capacitor.
  • Price in first year of sale
  • 70.00 $
  • Author
  • Model page created by Emilio Ciardiello. See "Data change" for further contributors.

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