• Year
  • 1933
  • Category
  • Car Radio, perhaps also + sound player/recorder
  • Radiomuseum.org ID
  • 31155

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

 Technical Specifications

  • Number of Tubes
  • 5
  • Main principle
  • TRF without regeneration; Screengrid 1926-1935
  • Tuned circuits
  • 3 AM circuit(s)
  • Wave bands
  • Broadcast only (MW).
  • Power type and voltage
  • Storage and/or dry batteries / 6 & 135-180 Volt
  • Loudspeaker
  • Electro Magnetic Dynamic LS (moving-coil with field excitation coil)
  • from Radiomuseum.org
  • Model: Moto-Midget [late] - Acme Radio Manufacturing Co.;
  • Notes
  • The Acme Radio Mfg. Moto-Midget [late] was a 5-tube battery-powered TRF car radio. The "A" supply used the 6V car battery for the filament and speaker field, and the "B+" supply used a dry battery.

    The early version, with a different tube lineup, was the Acme Radio Mfg. Moto-Midget [early].

  • External source of data
  • Ernst Erb
  • Circuit diagram reference
  • Rider's Perpetual, Volume 4 = ca. 1934 and before

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