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Model 200A Audio Oscillator, 1939 | HPE
https://www.hpe.com/us/en/about/history/innovation-gallery/002-product.html
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 telephones, stereos, radios and other audio equipment. The Model 200A began as the subject of Bill Hewlett's master's thesis at Stanford ...
Audio Oscillator 200A Equipment Hewlett-Packard, HP;
https://www.radiomuseum.org/r/hp_audio_oscillator_200a.html
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 telephones, stereos, radios and other audio equipment. The Model 200A began as the subject of Bill Hewlett's master's thesis at Stanford University in the late 1930s.
Hewlett-Packard HP-200A audio oscillator
https://people.ohio.edu/postr/bapix/HP200A.htm
Hewlett-Packard's first product, the HP-200A audio oscillator. After repairing several other Hewlett Packard oscillators such as the HP-200C , the HP-200CD , and the HP-200AB , I chanced upon this HP-200A which is the company's original product. (Link is …
HP 200A Manual - HP Archive
http://www.hparchive.com/Manuals/HP-200A-Manual-1951.pdf
The Model 200A Audio Oscillator consists of an oscillator section, an amplifier section and a power supply. The oscillator section (tubes V1 and V2) is a resistance-tuned type cir- cuit. Basically, this oscillator is a two-stage resistance-coupled amplifier which is caused to oscillate by the use of a positive feedback network.
Audio & Test Oscillator - HP Memory Project
https://www.hpmemoryproject.org/wb_pages/wall_b_page_10a.htm
Evolution of the Bill Hewlett's 200A Audio Oscillator . By the beginning of the 1960s Bill Hewlett's original RC Oscillator had already found many usages in various kinds of electronic instruments. In the 1960 general catalog, the most visible part of this evolution is …
HP 200A - Wikipedia
https://en.wikipedia.org/wiki/HP_200A
The HP 200A was the first product made by Hewlett-Packard and was manufactured in David Packard's garage in Palo Alto, California.. It was a low-distortion audio oscillator used for testing sound equipment. It used the Wien bridge oscillator circuit, that had been the subject of Bill Hewlett's Masters thesis. It was also the first such commercial oscillator to use a simple light …
Value of HP 200A audio oscillator??
https://www.hpmuseum.org/cgi-sys/cgiwrap/hpmuseum/archv008.cgi?read=16933
Re: Value of HP 200A audio oscillator?? Message #4 Posted by Ellis Easley on 30 Apr 2002, 9:34 a.m., in response to message #1 by jake wimberley. I was interested in one on Ebay several years ago that had been modified - an additional control had been added to the front panel. It was listed as an antique and sold for about $150.
Signal Sources - HP Memory Project
https://www.hpmemoryproject.org/wb_pages/wall_b_page_10.htm
From a Simple Audio Oscillator to a Complete Signal Source & Generator Product Line. Here is a very short summary of the four chapters dedicated to signal sources and generators in the first period of this "Quick Tour" (1939-1960): The HP 200A, a simple but revolutionary audio oscillator, was the first instrument developed by HP in 1939.
Model 200B audio oscillator, 1939 | HPE
https://www.hpe.com/us/en/about/history/innovation-gallery/008-product.html
Through the years, HP oscillators were used to design, produce and maintain telephones, stereos, radios and other audio equipment. In 1938, when the sound engineer for the movie Fantasia from the Walt Disney Studios saw the Model 200A audio oscillator in action, he asked Bill Hewlett to make some modifications to it, and the Model 200B was born.
Intro to Computing - Long Quiz Part 2 Flashcards | Quizlet
https://quizlet.com/645976039/intro-to-computing-long-quiz-part-2-flash-cards/
Developed HP 200A Audio Oscillator (1939) Atanasoff-Berry Computer (ABC) (1942) - 1942 - Awarded as real first electronic computer. Atanasoff-Berry Computer (ABC) and ENIAC _____ was in a center of patent dispute with _____. Colossus (1944) - 1944 - …
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