• Year
  • 1937
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 62061
    • Brand: Te-Lek-Tor-Et

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

 Technical Specifications

  • Number of Tubes
  • 13
  • Main principle
  • Superhet with RF-stage; ZF/IF 465 kHz; 2 AF stage(s)
  • Tuned circuits
  • 9 AM circuit(s)
  • Wave bands
  • Broadcast plus more than 2 Short Wave bands.
  • Power type and voltage
  • Alternating Current supply (AC) / 105-125 Volt
  • Loudspeaker
  • Electro Magnetic Dynamic LS (moving-coil with field excitation coil)
  • Material
  • Wooden case
  • from Radiomuseum.org
  • Model: 250-L - Stromberg-Carlson Co. ;
  • Shape
  • Console, Lowboy (legs < 50 %).
  • Notes
  • Rider's brings the Stromberg models 250L and 250LB for the same schematic on plan 8-37. Stein (page 203) is in error with 16 tubes. But he shows the same cabinet for 255L with only 4 bands. The model 250L has BC (530-1600 kHz), TROP (1600-4800 kHz), SW1 (4.8-11.0 MHz), SW2 (11.0-22.0 MHz) and SW3 (22.0-60.0 MHz) bands. Tuning eye, AFC circuit, push-pull audio amplifier. For 50 to 60 Hz AC.
  • External source of data
  • Ernst Erb
  • Circuit diagram reference
  • Rider's Perpetual, Volume 8 = 1937 and before

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The model 250-L is part of the collections of the following members.

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