Test Oscillator 651B

Hewlett-Packard, (HP); Palo Alto, CA

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  • Year
  • 1967 ?
  • Category
  • Service- or Lab Equipment
  • Radiomuseum.org ID
  • 246696

 Technical Specifications

  • 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
  • Material
  • Metal case
  • from Radiomuseum.org
  • Model: Test Oscillator 651B - Hewlett-Packard, HP; Palo Alto
  • Shape
  • Tablemodel, low profile (big size).
  • Dimensions (WHD)
  • 16.75 x 5.22 x 13.25 inch / 425 x 133 x 337 mm
  • Notes

  • The solid-state HP model 651B Test Oscillator provides accurate, stable test signals for laboratory or production measurements. This instrument covers a wide frequency range from 10 Hz to 10 MHz continuously variable across 6 bands.

    Two output impedances  are available from the front panel, providing 200 mW into 50 Ω
    or 16 mW into 600 Ω. This capacitance-tuned oscillator  delivers a flat output throughout the entire frequency range. Once warmed up, and in a normal lab environment where the ambient temperature is relatively constant, the frequency stability at 5 MHz is typically +/- 10 ppm.

    Attenuator: range 90 dB in 10 dB steps, overall accuracy +/- 0.1 dB
    Distortion: < 1%, 10 Hz to 5 MHz; < 2% at 10 MHz.
    Frequency response: flat within +/- 2%, 100 Hz to 1 MHz; +/- 3%, 10 Hz to 100 Hz;
    +/- 4%, 4 MHz to 10 MHz.

  • Net weight (2.2 lb = 1 kg)
  • 17 lb (17 lb 0 oz) / 7.718 kg
  • Price in first year of sale
  • 590.00 US$
  • Mentioned in
  • HP Measurement Catalog 1967, p.328
  • Author
  • Model page created by Bernhard Nagel. See "Data change" for further contributors.

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