• Country
• United States of America (USA)

• Manufacturer / Brand
• General Radio Company; Cambridge (MA)

• Year
• 1941 ?

• Category
• Service- or Lab Equipment

• Radiomuseum.org ID
• 328066

• • alternative name: GenRad

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

• Number of Tubes
• 1

• Valves / Tubes
• 1A5G 0C3

• Main principle
• Audio-Amplification

• Wave bands
• Wave Bands given in the notes.

• Power type and voltage
• Line / Batteries (any type) / 115 or 1.5 & 2 x 45 Volt

• Loudspeaker
• - This model requires external speaker(s).

• Power out
• 0.05 W (undistorted)

• Material
• Wooden case

• from Radiomuseum.org
• Model: Vacuum-Tube Fork and Power Supply 723-C & 723-P1 - General Radio Company;

• Shape
• Tablemodel, with any shape - general.

• Dimensions (WHD)
• 272 x 205 x 152 mm / 10.7 x 8.1 x 6 inch

• Notes

• 723-C sine wave frequency generator (1000Hz) with frequency determined by a vacuum tube driven tuning fork.  AC operation, and also can be used with batteries after removing the 723-P1 power supply unit.  Operating voltages can be measured at front panel terminals.

  Sinus-Frequenzgenerator 1000Hz, Frequenz durch Stimmgabel bestimmt,

  Wechselstrombetrieb ohne Netztrennung, kann nach Entnahme des Netzteils auch mit

  Batterien betrieben werden, Ausgang mit Übertrager, Messung der Betriebsspannungen

  an Schrauben auf der Frontplatte möglich, Schaltplan und Kurzbeschreibung auf

  Aluplatte im Gerät

   

• Net weight (2.2 lb = 1 kg)
• 4.7 kg / 10 lb 5.6 oz (10.352 lb)

• Author
• Model page created by Lothar Schäfer. See "Data change" for further contributors.

• Other Models

• Here you find 241 models, 212 with images and 131 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from General Radio Company; Cambridge (MA)