• Country
• United States of America (USA)

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

• Year
• 1958

• Category
• Service- or Lab Equipment

• Radiomuseum.org ID
• 128770

• Number of Tubes
• 12

• Valves / Tubes
• 6AV6 12AT7 12AT7 12B4A 6AL5 6U8 5Y3 6X4 12B4A 12B4A 12B4A 6AU6 0A2 5651

• Wave bands
• - without

• Power type and voltage
• 115/230 Volt

• Material
• Metal case

• from Radiomuseum.org
• Model: Calorimetric Power Meter 434A - Hewlett-Packard, HP; Palo Alto

• Shape
• Boatanchor (heavy military or commercial set >20 kg).

• Dimensions (WHD)
• 527 x 324 x 356 mm / 20.7 x 12.8 x 14 inch

• Notes
• Calorimetric Power Meter measures powers between a few milliwatts and 10 watts at frequencies from DC to 12.4 kilomegacycles [GHz]. Self-balancing type circuitry makes operation automatic and gives reading in less than 5 seconds. Instrument is provided with 50-ohm coaxial input. (HP Journal August 1958)

  Power Range: 10 milliwatts to 10 watts.
  Frequency Range: DC to 12.4 GHz

• Net weight (2.2 lb = 1 kg)
• 22.1 kg / 48 lb 10.9 oz (48.678 lb)

• Price in first year of sale
• 1,750.00 $

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

• Mentioned in
• - - Manufacturers Literature

• Literature/Schematics (1)
• HP Katalog 1969

• Author
• Model page created by Sven Hoffmann. 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