• Year
  • 1939
  • Category
  • Sound/Video Recorder and/or Player
  • Radiomuseum.org ID
  • 47400

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

 Technical Specifications

  • Number of Tubes
  • 2
  • Number of Transistors
  • Semiconductors
  • K90G
  • Main principle
  • Audio-Amplification
  • Details
  • Record Player (perh.Changer)
  • Power type and voltage
  • Alternating Current supply (AC) / 110 Volt
  • Loudspeaker
  • Electro Magnetic Dynamic LS (moving-coil with field excitation coil)
  • from Radiomuseum.org
  • Model: 498 - Mission Bell Radio Mfg. Co.;
  • External source of data
  • Ernst Erb
  • Circuit diagram reference
  • Rider's Perpetual, Volume 11 = ca. 1940 and before

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