Standard Frequency Receiver 5090A

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

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  • Year
  • 1964 ?
  • Category
  • Service- or Lab Equipment
  • Radiomuseum.org ID
  • 339156

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

 Technical Specifications

  • Number of Transistors
  • Semiconductors present.
  • Semiconductors
  • Main principle
  • PLL, Phase-locked loop
  • Wave bands
  • Wave Bands given in the notes.
  • Power type and voltage
  • Alternating Current supply (AC) / 115/230 Volt
  • Loudspeaker
  • - - No sound reproduction output.
  • Material
  • Metal case
  • from Radiomuseum.org
  • Model: Standard Frequency Receiver 5090A - Hewlett-Packard, HP; Palo Alto
  • Shape
  • Tablemodel, with any shape - general.
  • Dimensions (WHD)
  • 5.1 x 6.1 x 11 inch / 130 x 155 x 279 mm
  • Notes

  • The Hewlett-Packard 5090A is a general-purpose instrument which provides high-stability outputs at 100 kHz and 1 MHz.  The instrument can be used directly as a frequency standard, or used as a frequency phase measuring system to calibrate secondary frequency standards.

    It has an internal 100 kHz crystal oscillator which phase-locks (PLL) to the carrier frequency of 200 kHz from the British Broadcasting Corporation (BBC) Light Program broadcast from Droitwich, England.  This frequency has a stability of 5 x 10-10 so it is a simple and inexpensive method of obtaining a highly accurate frequency for laboratory use.

     

  • Net weight (2.2 lb = 1 kg)
  • 9 lb (9 lb 0 oz) / 4.086 kg
  • Mentioned in
  • “Electronic Engineering”, volume 36, May 1964.
  • Literature/Schematics (1)
  • "Measure, HP Company", Vol. 1, No. 5, Nov. 1963, page 5 "Bedford Designs First Instrument" 5090A.
  • Literature/Schematics (2)
  • "Model 5090A Standard Frequency Receiver Operating and Service Manual 02177-1", 1965.
  • Author
  • Model page created by Pier Antonio Aluffi. See "Data change" for further contributors.

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