Battery Operated Oscillator 204A

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

Data
Forum
Pictures
Collections

  • Year
  • 1952 ??
  • Category
  • Service- or Lab Equipment
  • Radiomuseum.org ID
  • 132316

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

 Technical Specifications

  • Number of Tubes
  • 3
  • Wave bands
  • - without
  • Power type and voltage
  • Dry Batteries / 5 x 1.5 & 3 x 45 Volt
  • Loudspeaker
  • - For headphones or amp.
  • Material
  • Metal case
  • from Radiomuseum.org
  • Model: Battery Operated Oscillator 204A - Hewlett-Packard, HP; Palo Alto
  • Shape
  • Tablemodel, with any shape - general.
  • Dimensions (WHD)
  • 10.5 x 10.5 x 11 inch / 267 x 267 x 279 mm
  • Notes

  • 2Hz to 20KHz audio generator. Operates from flashlight and 45V batteries.

    Frequency Rating
    Frequency Range:  2 to 20,000 cycles/sec. Dial Calibration  2 to 20
    Ranges:
    X1       2 to 20 cycles/sec
    X10     20 to 200 cycles/sec
    X100   200 to 2000 cycles/sec
    X1000 2000 to 20,000 cycles/sec
    Calibration Accuracy: ±2%
    Frequency Response: ±1 db from 2 to 20,000 cycles/sec.
    Frequency Stability: Within ±3% including calibration error, normal tube
    aging, and normal battery aging. Aging of batteries causes not more
    than 1% change in frequency.

    Output Rating
    Rated Output: 5 volts across a 10,000 ohms resistive load
    Distortion: Less than 1%, 10 to 20,000 cycles/sec.
    Less than 2% below 10 cycles/sec.
    Rated Load Impedance: 10,000 ohms, resistive

    Power Source (Self Contained)
    Filament: 5 Burgess No.2 (or equivalent) flashlight batteries (1-1/2
    volts each)
    Plate: 3 Burgess No.5308 (or equivalent) batteries (45 volts each)
    Battery Life: 60 hours total when used at the rate of 4 hours daily.

     

  • Net weight (2.2 lb = 1 kg)
  • 25 lb 0 oz (25 lb) / 11.350 kg
  • Price in first year of sale
  • 175.00 $
  • Source of data
  • -- Original prospect or advert
  • Literature/Schematics (1)
  • -- Schematic
  • Author
  • Model page created by Emilio Ciardiello. See "Data change" for further contributors.

 Collections | Museums | Literature

 Forum