HM-22A

General Electric Co. (GE); Bridgeport CT, Syracuse NY

Data
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  • Year
  • 1939 ??
  • Category
  • Power supply/conditioner or battery or charger 
  • Radiomuseum.org ID
  • 208783
    • Brand: Musaphonic

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

 Technical Specifications

  • Wave bands
  • - without
  • Details
  • Converter
  • Power type and voltage
  • Direct Current supply (DC) / 110 Volt
  • Loudspeaker
  • - - No sound reproduction output.
  • from Radiomuseum.org
  • Model: HM-22A - General Electric Co. GE;
  • Notes
  • Model HM-22 is an Inverter used to convert 100VDC into AC to power synchronous phonograph motors. Model HM-22A is an Inverter used to convert 100VDC into AC to power induction phonograph motors. These Inverters use a Vibrator to generate the AC output. GE Models H638, H639, HJ618 and HJ628 use both synchronous and induction motors, with the synchronous motors identified by small idler pulleys on the motor assembly and induction motors using only a single large idler pulley. It is important to use the correct Inverter based on the type of motor driven.
  • Literature/Schematics (1)
  • General Electric Radio Service Notes 1939-1942
  • Author
  • Model page created by John Kusching. See "Data change" for further contributors.

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