• Country
• United States of America (USA)

• Manufacturer / Brand
• Hewlett-Packard, (HP); Palo Alto, CA

• Year
• 1966

• Category
• Service- or Lab Equipment

• Radiomuseum.org ID
• 128192

• Number of Transistors
• Semiconductors present.

• Semiconductors

• Wave bands
• Wave Bands given in the notes.

• Power type and voltage
• Alternating Current supply (AC) / 115-230 Volt

• Loudspeaker
• - - No sound reproduction output.

• Material
• Metal case

• from Radiomuseum.org
• Model: Sweep Oscillator 691-D - Hewlett-Packard, HP; Palo Alto

• Shape
• Tablemodel, with any shape - general.

• Dimensions (WHD)
• 426 x 221 x 483 mm / 16.8 x 8.7 x 19 inch

• Notes
• Range 1-2 GHz. Sweep width ±20 MHz. Two markers. Output 70 mW min.; employs tubes and transistors.

• Net weight (2.2 lb = 1 kg)
• 27.2 kg / 59 lb 14.6 oz (59.912 lb)

• Source of data
• - - Data from my own collection

• Author
• Model page created by Eero Ukkola. See "Data change" for further contributors.

• Other Models

• Here you find 393 models, 361 with images and 138 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Hewlett-Packard, (HP); Palo Alto, CA