• Country
• United States of America (USA)

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

• Year
• 1962 ?

• Category
• Service- or Lab Equipment

• Radiomuseum.org ID
• 263472

• • alternative name: GenRad

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

• Number of Transistors
• 8

• Semiconductors
• 2N1304 2N1305 2N1304 2N176 2N1305 2N176 2N176 2N1304

• Main principle
• Audio-Amplification

• Wave bands
• - without

• Power type and voltage
• Alternating Current supply (AC) / 105-125 or 210-250 Volt

• Loudspeaker
• - For headphones or amp.

• Power out
• 1 W (unknown quality)

• Material
• Metal case

• from Radiomuseum.org
• Model: Audio Oscillator 1311 - General Radio Company;

• Shape
• Tablemodel, with any shape - general.

• Dimensions (WHD)
• 8 x 6 x 7.75 inch / 203 x 152 x 197 mm

• Notes

• General Radio Audio Oscillator 1311 (1311-A) is a transistorized RC Oscillator, which makes extensive use of negative feedback to attain amplitude and frequency stability of high order, as well as long-term reliability. The output system uses a multitap shielded transformer, capable of matching impedances from 0.25 to 2500 ohms. The output is well isolated from the oscillator circuitry to provide a distortion-free waveform to any impedance, including short circuit. See datasheet.

  Output:
  -   11 fixed frequencies from 50 - 10.000 Hz
  -   voltage: 0 - 100 V
  -   current: 0 - 4.000 mA (short circuit)
  -   max. 1W into matched load.

• Net weight (2.2 lb = 1 kg)
• 2.8 kg / 6 lb 2.7 oz (6.167 lb)

• Mentioned in
• -- Original-techn. papers. (GR, Operating Instructions, June 1963.)

• Literature/Schematics (1)
• General Radio Experimenter Aug/Sept 1962

• Author
• Model page created by a member from A. See "Data change" for further contributors.

• Other Models

• Here you find 238 models, 212 with images and 128 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from General Radio Company; Cambridge (MA)