4551: Difference between revisions
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The '''Tektronix 4551''' is a light pen system. | The '''Tektronix 4551''' is a light pen system. | ||
* [ | * [https://w140.com/tek_4551_1971_cat.pdf Tektronix 4551 Description in 1971 Catalog (PDF)] | ||
[[Category:Introduced in 1971]] | [[Category:Introduced in 1971]] | ||
Revision as of 14:04, 23 January 2021
The Tektronix 4551 is a light pen system.