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Model 200A Audio Oscillator, 1939 | HPE
https://www.hpe.com/us/en/about/history/innovation-gallery/002-product.html
The Model 200A was HP's first product. Model 200A audio oscillator, 1939 An audio oscillator is an instrument that generates one pure tone or frequency at a time. Through the years, HP oscillators were used to design, produce and maintain …
HP Virtual Museum: Model 200A audio oscillator, 1939 …
https://www.hp.com/hpinfo/abouthp/histnfacts/museum/earlyinstruments/0002/0002history.html
Their initial product was the 200A audio oscillator; It sold for $54.40. Similar equipment built by competitors cost between $200 and $600, a whopping price difference that generated a buzz very quickly. The company's first big sale was an order of eight model 200B audio oscillators to the Walt Disney Company.
Audio Oscillator 200A Equipment Hewlett-Packard, HP;
https://www.radiomuseum.org/r/hp_audio_oscillator_200a.html
Model: Audio Oscillator 200A - Hewlett-Packard, HP; Palo Alto Shape Tablemodel without push buttons, Mantel/Midget/Compact up to 14 Dimensions (WHD) 10.5 x 7 x 10 inch / 267 x 178 x 254 mm Notes Hewlett-Packard's first product, 200A has a range of 20 Hz to 20 kHz and 200B can distribute 35 Hz to 35 kHz.
HP Virtual Museum: Model 200A audio oscillator, 1939
https://hp.com/hpinfo/abouthp/histnfacts/museum/earlyinstruments/0002/0002threeqtr.html
Model 200A audio oscillator, 1939—3/4 view » Company information ...
Hewlett-Packard HP-200A audio oscillator
https://people.ohio.edu/postr/bapix/HP200A.htm
Like the other HP oscillators, the HP200A is a Wien bridge resistance-tuned audio oscillator using the light-bulb stabilized negative feedback circuit designed by William Hewlett while doing graduate work at Stanford. (Patent #2268872. Application filed in 1939 and granted in 1942).
HP model model 200-A audio oscillator | National …
https://americanhistory.si.edu/collections/search/object/nmah_709054
Audio Oscillator Other Terms Audio Oscillator; Components; Laboratory and Measurement; Laboratory and Measurement maker Hewlett-Packard Company Measurements overall: 8 1/2 in x 13 1/2 in x 10 1/4 in; 21.59 cm x 34.29 cm x 26.035 cm …
HP 200A Manual - The Hewlett Packard Archive
http://www.hparchive.com/Manuals/HP-200A-Manual-1951.pdf
The Model 200A Audio Oscillator is a general purpose oscillator which uses the resistance-tuned circuit to generate alternating current voltages from 35 to 35,000 cycles/sec. This audio oscillator provides a source of voltage for amplifier testing, audio response &-Ea~smi4&szBc,.
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