821: Difference between revisions
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|introduced=1974 | |introduced=1974 | ||
|discontinued=(?) | |discontinued=(?) | ||
|designers= | |designers=Bob Beville | ||
|manuals= | |manuals= | ||
* ''please add'' [[Category:Manual needed]] | * ''please add'' [[Category:Manual needed]] | ||
* [[Bob Beville]], ''Triggering the oscilloscope from logic signals''. In [[Media:Tekscope_1974_V6_N2.pdf|TekScope V.6 N.2 1974]], pp. 12+ | |||
* [[Media:Tek 821 description.pdf|Tek 821 Description]] | |||
}} | }} | ||
The '''Tektronix 821''' is a 4-bit word recognizer accessory for triggering a scope on a combination of digital signals. | The '''Tektronix 821''' is a 4-bit word recognizer accessory for triggering a scope on a combination of digital signals. | ||
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The 821 has a [[LEMO S-series connector]] by which it can be powered from the scope's probe power socket. | The 821 has a [[LEMO S-series connector]] by which it can be powered from the scope's probe power socket. | ||
Up to four 821s can be cascaded for up to 16 input bits. | Up to four 821s can be cascaded for up to 16 input bits. | ||
==See Also== | ==See Also== | ||