1

Franklin Radio Corp.; Dayton (OH)

Data
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  • Year
  • 1933 ??
  • Category
  • Service- or Lab Equipment
  • Radiomuseum.org ID
  • 40861

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

 Technical Specifications

  • Wave bands
  • - without
  • Details
  • Other Combination - see Notes
  • Power type and voltage
  • Dry Batteries / 4.5 Volt
  • from Radiomuseum.org
  • Model: 1 - Franklin Radio Corp.; Dayton
  • Notes

  • Volt-Ohmmeter

    The Model 1 Voltmeter-Ohmeter uses a single meter to cover the various voltage and resistance ranges. The meter has a double scale; the upper scale reading 1-100,000 ohms; the lower scalereading 0-500 volts. The resistance can be rediced to one-tenth its value and the voltage range can be reduced to 3 or 30 volts and increased to 600 volts. A high range and low range switch is mounted on the bakelite panel.

    When used as a voltmeter, the model 1 has a resistance of 1000 ohms per volt in each of its ranges, thereby measuring plate voltage without distortion of reading.

    The 4 1/2 volt dry cell to supply the voltage for the ohmmeter is enclosed in the case. On the panel is a compensator adjustor to provide for zero reading.

    Pin jacks for resistance and voltage readings are arranged along the front edge of the panel.

     

  • External source of data
  • Ernst Erb
  • Circuit diagram reference
  • Rider's Perpetual, Volume 4 = ca. 1934 and before
  • Mentioned in
  • Service (magazine), Feb. 1933, page 51

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