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* [[Media:1947_Tektronix_Catalog.pdf|Tektronix 1947 "Catalog" (511 only)]] | * [[Media:1947_Tektronix_Catalog.pdf|Tektronix 1947 "Catalog" (511 only)]] | ||
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The 511 was Tek's second product (first was the [[101|Type 101 Video Calibrator]]), and the company's '''first oscilloscope''', [[introduced in 1947|introduced in June 1947]]. | The 511 was Tek's second product (first was the [[101|Type 101 Video Calibrator]]), and the company's '''first oscilloscope''', [[introduced in 1947|introduced in June 1947]]. According to TekWeek March 23, 1984, ''"511" stood for 5-inch tube, 1 channel, 1st model. It sold for $595, compared to $1,800 for a two-piece Dumont scope that was mostly pre-war technology.'' | ||
An improved version, the 511A, was [[introduced in 1948|introduced in November 1948]]. Major improvements included a regulated power supply for CRT and calibrator (s.b.) | An improved version, the 511A, was [[introduced in 1948|introduced in November 1948]]. Major improvements included a regulated power supply for CRT and calibrator (s.b.) | ||
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==History== | ==History== | ||
* See also https://vintagetek.org/tektronix-first-products/ | |||
Tektronix engineer [[Frank Hood]] recollects: | Tektronix engineer [[Frank Hood]] recollects: | ||
<blockquote>My first assignment was to build or modify some special instruments for Bonneville Power. They wanted a device that would detect and record any lightning strikes or arc-overs on the high voltage power lines running between Vancouver, Wash. and other cities such as Longview, Spokane, etc. They wanted to detect each event, in a fraction of a millionth of a second, then to send a pulse of energy down the defective line and measure the time it took to return, (this was an application much like radar). They wanted markers displayed at each mile and fraction of a mile so that they could determine the exact location of the fault. They needed to record a photographic image for latter study. Two or more such instruments were built. We called these Type 511B. They worked very well and were used for several years. | <blockquote>My first assignment was to build or modify some special instruments for Bonneville Power. They wanted a device that would detect and record any lightning strikes or arc-overs on the high voltage power lines running between Vancouver, Wash. and other cities such as Longview, Spokane, etc. They wanted to detect each event, in a fraction of a millionth of a second, then to send a pulse of energy down the defective line and measure the time it took to return, (this was an application much like radar). They wanted markers displayed at each mile and fraction of a mile so that they could determine the exact location of the fault. They needed to record a photographic image for latter study. Two or more such instruments were built. We called these Type 511B. They worked very well and were used for several years. | ||