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Audio Oscillator 202D

Audio Oscillator 202D; Hewlett-Packard, HP; (ID = 1247913) Equipment
Audio Oscillator 202D; Hewlett-Packard, HP; (ID = 1247562) Equipment Audio Oscillator 202D; Hewlett-Packard, HP; (ID = 1247915) Equipment
Audio Oscillator 202D; Hewlett-Packard, HP; (ID = 1500830) Equipment
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Audio Oscillator 202D; Hewlett-Packard, HP; (ID = 1247562) Equipment
Hewlett-Packard, HP;: Audio Oscillator 202D [Equipment] ID = 1247562 930x515
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For model Audio Oscillator 202D, Hewlett-Packard, (HP); Palo Alto, CA:
Source: HP Service Manual
Country:  United States of America (USA)
Manufacturer / Brand:  Hewlett-Packard, (HP); Palo Alto, CA
Year: 1950 Category: Service- or Lab Equipment
Valves / Tubes 5: 6J7 6F6 6J7 6V6 5Y3GT
Wave bands - without
Power type and voltage Alternating Current supply (AC) / 115 Volt
Loudspeaker - - No sound reproduction output.
Power out
from Model: Audio Oscillator 202D - Hewlett-Packard, HP; Palo Alto
Material Metal case
Shape Tablemodel, with any shape - general.
Dimensions (WHD) 17 x 8.75 x 11.12 inch / 432 x 222 x 282 mm

The Model 202D Audio Oscillator is a general purpose oscillator which uses the resistance-tuned circuit to generate alternating current voltages from 2 to 70,000 cycles/sec. This audio oscillator provides a source of voltage for amplifier testing, audio response of transmitters, loud speaker resonance tests, and a voltage source for bridge measurements. It is particularly useful where low frequencies are involved, as in mechanical vibration problems.

Frequency Range: 2 - 70,000 cycles/sec
Frequency Dial Calibration X range 2 - 20, A range 7 Kc - 70 Kc
xl 2 - 20 cycles/sec
x10 20 - 200 cycles/sec
x100 200 - 2000 cycles/sec
x1000 2000 - 20,000 cycles/sec
A 7000 - 70,000 cycles/sec
Calibration Accuracy: ±2%
Frequency Response: ±1 db 2 to 70,000 cycles/sec. Reference: 1000 cycles/sec, 10 volts across 1000 ohms resistive load. Frequency Stability ±2% under normal temperature conditions, including initial warm-up. ±10 volt line variations change frequency less than ± 0.2% at 1000 cycles/sec
Power Output: 100 milliwatts into rated load (10 volts across 1000 ohms resistive load)
Distortion: Less than 1% of rated output from 2 to 70,000 cycles/sec
Hum: Less than 1% of rated output
Load Impedance: 1000 ohms (resistive)
Approximate Internal Impedance: 25 ohms from 50 to 70,000 cycles/sec

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Net weight (2.2 lb = 1 kg) 25 lb 0 oz (25 lb) / 11.350 kg
Source of data -- Schematic

Model page created by Pius Steiner. 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.