• Year
  • 1936 ?
  • Category
  • Audio Amplifier or -mixer
  • Radiomuseum.org ID
  • 58070

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

 Technical Specifications

  • Number of Tubes
  • 3
  • Main principle
  • Audio-Amplification
  • Wave bands
  • - without
  • Power type and voltage
  • Alternating Current supply (AC) / 110 Volt
  • Loudspeaker
  • Permanent or electro-dynamic (moving coil), system not known yet. / Ø 6.5 inch = 16.5 cm
  • from Radiomuseum.org
  • Model: OP - Simplex Radio Co.;
  • Shape
  • Portable set > 8 inch (also usable without mains)
  • Dimensions (WHD)
  • 9.25 x 11.375 x 4.25 inch / 235 x 289 x 108 mm
  • Notes
  • Microphone only less Cord $4.50, Microphone Cord only $1.50, 220 Volt Model, Extra $2.00.

  • Net weight (2.2 lb = 1 kg)
  • 10.5 lb (10 lb 8 oz) / 4.767 kg
  • Price in first year of sale
  • 37.95 $
  • External source of data
  • Ernst Erb
  • Circuit diagram reference
  • Rider's Perpetual, Volume 7 = 1936 and before
  • Literature/Schematics (3)
  • -- Original prospect or advert (The Simplex Folder ca. for 1936.)

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