1

Franklin Radio Corp.; Dayton (OH)

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  • Année
  • 1933 ??
  • Catégorie
  • Appareils de mesure et de dépannage (matériel de labo)
  • Radiomuseum.org ID
  • 40861

Cliquez sur la vignette du schéma pour le demander en tant que document gratuit.

 Spécifications techniques

  • Gammes d'ondes
  • - sans
  • Particularités
  • Autre combinaison, voir note 
  • Tension / type courant
  • Piles sèches / 4.5 Volt
  • De Radiomuseum.org
  • Modèle: 1 - Franklin Radio Corp.; Dayton
  • Remarques

  • 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.

     

  • Source extérieure
  • Ernst Erb
  • Source du schéma
  • Rider's Perpetual, Volume 4 = ca. 1934 and before
  • Littérature
  • Service (magazine), Feb. 1933, page 51

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