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Type R was [[introduced in 1958]], along with the [[551]], [[533]], and [[543]] mainframes, | Type R was [[introduced in 1958]], along with the [[551]], [[533]], and [[543]] mainframes, | ||
and the Type [[H]] | and the Type [[H]] plug-in. It is the first plug-in with transistors. It was dropped after 1966 or 1967. | ||
* [http://bama.edebris.com/manuals/tek/r/ Tektronix Type R Manual (BAMA)] | * [http://bama.edebris.com/manuals/tek/r/ Tektronix Type R Manual (BAMA)] |