240-MB Ch= P-27245

Stromberg-Carlson Co. ; Rochester (NY)

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  • Year
  • 1937
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 62043
    • Brand: Te-Lek-Tor-Et

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

 Technical Specifications

  • Number of Tubes
  • 11
  • Main principle
  • Superhet with RF-stage; ZF/IF 465 kHz; 3 AF stage(s)
  • Tuned circuits
  • 7 AM circuit(s)
  • Wave bands
  • Broadcast, Short Wave(s) and Police.
  • 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: 240-MB Ch= P-27245 - Stromberg-Carlson Co. ;
  • Shape
  • Console with any shape - in general
  • Notes
  • The Stromberg-Carlson model 240-MB is an 11 tube, 25-60Hz AC operated BC/Police/SW band receiver.

    Band Frequencies:
    Broadcast Band ("Band A"): 530-1700kHz
    Police Band ("Band B"): 1700-5600MHz
    SW Band ("Band C"): 5.6-18.0MHz

    Has Tuning eye, acoustic labyrinth and push-pull output stage. Has "signal admission control switch" for BC band that adjusts sensitivity(CCW to increase sensitivity).
  • External source of data
  • Ernst Erb
  • Circuit diagram reference
  • Rider's Perpetual, Volume 9 = 1938 and before
  • Mentioned in
  • Rider's 9-19 to 9-24
  • Literature/Schematics (1)
  • - - Manufacturers Literature (Stromberg-Carlson Datasheet P-28036 Form 2195 Issue 2)

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