221: Difference between revisions

1 byte added ,  4 July 2018
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image=Tek 221 1.jpg |
image=Tek 221 1.jpg |
caption=Tektronix 221 |
caption=Tektronix 221 |
introduced=1973 |
introduced=1975 |
discontinued=(?) |
discontinued=1991 |
manuals=
manuals=
* [http://w140.com/mmm/tek-221.pdf Tektronix 221 Manual (PDF)]
* [http://w140.com/mmm/tek-221.pdf Tektronix 221 Manual (PDF)]