• Country
• United States of America (USA)

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

• Year
• 1952

• Category
• Service- or Lab Equipment

• Radiomuseum.org ID
• 82825

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

• Number of Tubes
• 6

• Valves / Tubes
• 6AU6 6AQ5 6SN7GT 6K6GT 6K6GT 5AR4

• Main principle
• something special ? Please give information (notes)

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

• Loudspeaker
• - For headphones or amp.

• Material
• Metal case

• from Radiomuseum.org
• Model: Audio Oscillator 200AB - Hewlett-Packard, HP; Palo Alto

• Shape
• Tablemodel, slant panel.

• Dimensions (WHD)
• 191 x 292 x 305 mm / 7.5 x 11.5 x 12 inch

• Notes

• Info on HPs page:
  The Model 200AB and its sister instrument, the Model 200CD, were introduced at the same time in 1952. These new oscillators represented a substantial increase in versatility over previous ones. For example, the frequency range of the 200AB (20 cps to 40 kc) was such that it replaced two of the older HP oscillators, Models 200A and 200B, which were discontinued. This was accomplished without an increase in price.
  
  In addition to advances in electrical design, the cabinetry of the new oscillator was redesigned. The cabinet width was reduced to save bench space, while the appearance was designed to be more pleasing and to aid in operation. One of the improvements was a large, 6-inch tuning dial.
  
  The 200AB was used for amplifier testing, as a bridge voltage source, for testing transmitter modulator response, modulating signal generators, syncing pulse generators, making loudspeaker resonance tests and powering mechanical systems.

  Frequency range: 20 - 40,000 Hz.

• Net weight (2.2 lb = 1 kg)
• 6.7 kg / 14 lb 12.1 oz (14.758 lb)

• Price in first year of sale
• 215.00 $

• Author
• Model page created by Ernst Erb. 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