• Country
• United States of America (USA)

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

• Year
• 1959 ??

• Category
• Service- or Lab Equipment

• Radiomuseum.org ID
• 80803

• • alternative name: GenRad

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

• Number of Transistors
• Semiconductors present.

• Semiconductors

• Wave bands
• Wave Bands given in the notes.

• Power type and voltage
• Line / Storage batteries (perhaps also batteries) / 230 Volt

• Material
• Metal case

• from Radiomuseum.org
• Model: Octave Noise Band Analyzer 1558-BP - General Radio Company;

• Shape
• Tablemodel, with any shape - general.

• Dimensions (WHD)
• 232 x 180 x 155 mm / 9.1 x 7.1 x 6.1 inch

• Notes
• controls for level, band (31.5Hz to 16kHz) and function (fast, slow, cal, bat, charge), inputs for microphone (XLR 3pins) or SPL, monitor output, also battery operation with internal storage battery.

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

• 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)