• Country
• United States of America (USA)

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

• Year
• 1971 ?

• Category
• Service- or Lab Equipment

• Radiomuseum.org ID
• 80857

• • alternative name: GenRad

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

• Number of Transistors
• Semiconductors present.

• Semiconductors

• Main principle
• Audio-Amplification

• Power type and voltage
• Dry Batteries / 4x1.5(C=Baby) Volt

• Loudspeaker
• - - No sound reproduction output.

• Material
• Various materials

• from Radiomuseum.org
• Model: Precision Sound Level Meter 1933 - General Radio Company;

• Shape
• Tablemodel, with any shape - general.

• Dimensions (WHD)
• 160 x 230 x 78 mm / 6.3 x 9.1 x 3.1 inch

• Notes
• Linear scale, 8 push buttons (Flat, A, B, C, slow, Bat, Impulse, On), 2 controls for band set and level 10 to 130dB, built in 1/2 inch microphone on telecope mast, input selector, special 3 color design case,

• Net weight (2.2 lb = 1 kg)
• 1.8 kg / 3 lb 15.4 oz (3.965 lb)

• Source of data
• -- Collector info (Sammler)

• 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)