• Country
• United States of America (USA)

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

• Year
• 1955

• Category
• Service- or Lab Equipment

• Radiomuseum.org ID
• 157612

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

• 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: Vacuum Tube Voltmeter 400AB - Hewlett-Packard, HP; Palo Alto

• Shape
• Tablemodel, high profile (upright - NOT Cathedral nor decorative).

• Dimensions (WHD)
• 7.25 x 11.25 x 7 inch / 184 x 286 x 178 mm

• Notes
• 0.3mV to 300V in 11 ranges, 10Hz to 600KHz, 2% accuracy; 10Mohms input impedance.

• Net weight (2.2 lb = 1 kg)
• 6.750 kg / 14 lb 13.9 oz (14.868 lb)

• Literature/Schematics (1)
• Electronics, April 1955

• Author
• Model page created by Emilio Ciardiello. See "Data change" for further contributors.

• Other Models

• Here you find 394 models, 362 with images and 139 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Hewlett-Packard, (HP); Palo Alto, CA