• Country
• United States of America (USA)

• Manufacturer / Brand
• Hickok Electrical Instrument Co.; Cleveland, OH

• Year
• 1956

• Category
• Service- or Lab Equipment

• Radiomuseum.org ID
• 99160

• • alternative name: Hickock

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

• Wave bands
• Wave Bands given in the notes.

• Power type and voltage
• Alternating Current supply (AC) / 110-120 Volt

• Loudspeaker
• - - No sound reproduction output.

• Material
• Metal case

• from Radiomuseum.org
• Model: 691 Heterodyned Marker Adder - Hickok Electrical Instrument

• Shape
• Tablemodel, with any shape - general.

• Dimensions (WHD)
• 11.25 x 8.25 x 7 inch / 286 x 210 x 178 mm

• Notes
• Response curve from 0-20 db, input impedance 90 ohms.

• Price in first year of sale
• 100.00 $

• Literature/Schematics (1)
• Allied Radio Catalog Nº 150, 1956

• Author
• Model page created by Vitor Oliveira. See "Data change" for further contributors.

• Other Models

• Here you find 152 models, 136 with images and 43 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Hickok Electrical Instrument Co.; Cleveland, OH