• Year
  • 1954 ??
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 46798

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

 Technical Specifications

  • Number of Tubes
  • 8
  • Main principle
  • Superhet with RF-stage
  • Tuned circuits
  • 7 AM circuit(s)
  • Wave bands
  • Broadcast only (MW).
  • Details
  • Tape Recorder
  • Power type and voltage
  • Alternating Current supply (AC) / 60 Hz, 117V = 110 -120 Volt
  • Loudspeaker
  • Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 6 inch = 15.2 cm
  • Power out
  • 5 W (unknown quality)
  • Material
  • Various materials
  • from Radiomuseum.org
  • Model: D-37-R - Masco Mark Simpson Company Inc
  • Shape
  • Tablemodel, with any shape - general.
  • Notes
  • The Masco models D-37, D-37R, DC-37R, LD-37 and LD-37R tape recorders are designed to magnetically record two tracks of recording material on a standard .248 "width ribbon at a tape speed of 3.75" per second or 7.50" per second.The mechanism is equiped with a fast-rewind requiring approximately 3 minutes for 1200 feet of tape (7" reel). These units have two input channels - microphone and radio - phono - and two amplifier controls - volume and tone. There are two outputs, external speaker and external  amplifier.

     

  • External source of data
  • Ernst Erb
  • Circuit diagram reference
  • Rider's Perpetual, Volume 22, covering 1951

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