• Country
• United States of America (USA)

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

• Year
• 1930 ?

• Category
• Military Equipment (not Re, Tr or RXT)

• Radiomuseum.org ID
• 353382

• • alternative name: GenRad

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

• Wave bands
• - without

• Power type and voltage
• Storage and/or dry batteries / 6 Volt

• Loudspeaker
• - - No sound reproduction output.

• Material
• Wooden case

• from Radiomuseum.org
• Model: Audio Oscillator 400 Hz 213-C - General Radio Company;

• Shape
• Tablemodel, with any shape - general.

• Dimensions (WHD)
• 6.5 x 4.5 x 5 inch / 165 x 114 x 127 mm

• Notes

• General Radio 213-C is a fixed frequency oscillator.  The oscillator is a self-starting, electro-mechanical tuning fork design with a fixed frequency of 400 Hz.  There are three output levels, low, medium, and high.

  The earlier 1000 Hz model is the General Radio 213-B.

• Net weight (2.2 lb = 1 kg)
• 5.5 lb (5 lb 8 oz) / 2.497 kg

• Price in first year of sale
• 42.00 USD

• Mentioned in
• - - Manufacturers Literature (General Radio Experimenter, April 1930, pages 1-4, 8 (213-B & 213-C))

• Literature/Schematics (1)
• - - Manufacturers Literature (General Radio Company Catalog "E", Sept. 1928, pages 82-85 (213-B))

• Literature/Schematics (2)
• - - Manufacturers Literature (General Radio Company Catalog "F", June 1930, page 41 (213-B & 213-C))

• Author
• Model page created by Jeffrey Rehkopf. 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)