• Country
• United States of America (USA)

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

• Year
• 1965 ??

• Category
• Service- or Lab Equipment

• Radiomuseum.org ID
• 112397

• Number of Transistors
• Semiconductors present.

• Semiconductors

• Wave bands
• - without

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

• Loudspeaker
• - - No sound reproduction output.

• Material
• Metal case

• from Radiomuseum.org
• Model: Power Meter C34-431C - Hewlett-Packard, HP; Palo Alto

• Dimensions (WHD)
• 218 x 320 x 245 mm / 8.6 x 12.6 x 9.6 inch

• Notes
• Military version of 431C. Uses 478A. 10 MHz - 10,000 MHz. Seven ranges 0.01 to 10 Milliwatt full deflection.
  Militärische Ausführung des 431C. Mit Thermistormesskopf 478A für Frequenzen von 10 MHz-10 GHz. Sieben schaltbare Bereiche von 0,01-10 mW Endausschlag.

• Net weight (2.2 lb = 1 kg)
• 4.9 kg / 10 lb 12.7 oz (10.793 lb)

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

• Author
• Model page created by Otto Frosinn. See "Data change" for further contributors.

• Other Models

• Here you find 391 models, 359 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