4551: Difference between revisions

Revision as of 23:33, 9 October 2019

The Tektronix 4551 is a light pen system.

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	The Tektronix 4551 is a light pen system.		The '''Tektronix 4551''' is a light pen system.

	* [http://w140.com/tek_4551_1971_cat.pdf Tektronix 4551 Description in 1971 Catalog (PDF)]		* [http://w140.com/tek_4551_1971_cat.pdf Tektronix 4551 Description in 1971 Catalog (PDF)]