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Battery Operated Oscillator 204A

Battery Operated Oscillator 204A; Hewlett-Packard, HP; (ID = 720373) Equipment
Battery Operated Oscillator 204A; Hewlett-Packard, HP; (ID = 719788) Equipment Battery Operated Oscillator 204A; Hewlett-Packard, HP; (ID = 1321215) Equipment
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Battery Operated Oscillator 204A; Hewlett-Packard, HP; (ID = 719788) Equipment
Hewlett-Packard, HP;: Battery Operated Oscillator 204A [Equipment] ID = 719788 849x755
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For model Battery Operated Oscillator 204A, Hewlett-Packard, (HP); Palo Alto, CA:
Quelle: HP Tech Manual
Country:  United States of America (USA)
Manufacturer / Brand:  Hewlett-Packard, (HP); Palo Alto, CA
Year: 1952 ?? Category: Service- or Lab Equipment
Valves / Tubes 3: 1U4 3V4 3V4
Wave bands - without
Power type and voltage Dry Batteries / 5 x 1.5 & 3 x 45 Volt
Loudspeaker - For headphones or amp.
Power out
from Model: Battery Operated Oscillator 204A - Hewlett-Packard, HP; Palo Alto
Material Metal case
Shape Tablemodel, with any shape - general.
Dimensions (WHD) 10.5 x 10.5 x 11 inch / 267 x 267 x 279 mm

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
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

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

All listed radios etc. from Hewlett-Packard, (HP); Palo Alto, CA
Here you find 355 models, 322 with images and 124 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.