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David Wise (talk | contribs) m (correct discontinuation year based on 1972-73 catalogs) |
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caption=Tektronix 551 | | caption=Tektronix 551 | | ||
introduced=1958 | | introduced=1958 | | ||
discontinued= | discontinued=1973 | | ||
manuals= | manuals= | ||
* [http://bama.edebris.com/download/tek/551/Tek%20551.pdf Tektronix 551 Manual (PDF)] | * [http://bama.edebris.com/download/tek/551/Tek%20551.pdf Tektronix 551 Manual (PDF)] |
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