• Year
  • 1950 ??
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 57451

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

 Technical Specifications

  • Number of Tubes
  • 4
  • Main principle
  • Superheterodyne (common); ZF/IF 455 kHz
  • Tuned circuits
  • 6 AM circuit(s)
  • Wave bands
  • Broadcast only (MW).
  • Power type and voltage
  • Line / Batteries (any type) / 117/67.5/3 Volt
  • Loudspeaker
  • Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 4 inch = 10.2 cm
  • from Radiomuseum.org
  • Model: 1U286 - Sentinel Radio Corp., Evanston
  • Notes
  • Line supply=AC or DC 67.5V=+B 1.5Vx2=A (filament) selenium rectifier and 68 ohm resistor(item 40 and 23 )are used in model 286PR only. 117Z3 tube is used in model 286P. Built in loop,antenna
  • External source of data
  • Ernst Erb
  • Circuit diagram reference
  • Rider's Perpetual, Volume 18 = 1949 and before

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