21 (plug-in): Difference between revisions
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(Created page with "{{Plugin Sidebar 2| title=Tektronix Type 21 | summary=Time base plug-in| image=image needed.jpg| caption=image needed| introduced=1959 | discontinued=(?) | series=555| man...") |
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title=Tektronix Type 21 | | title=Tektronix Type 21 | | ||
summary=Time base plug-in| | summary=Time base plug-in| | ||
image= | image=Tek 21 front.jpg| | ||
caption= | caption=Type 21 front.jpg| | ||
introduced=1959 | | introduced=1959 | | ||
discontinued=(?) | | discontinued=(?) | | ||
| Line 19: | Line 19: | ||
==Pictures== | ==Pictures== | ||
'''Type 21''' | |||
<gallery> | <gallery> | ||
Tek 21 front.jpg| 21 front | |||
Tek 21 top.jpg| 21 top | |||
Tek 21 bottom.jpg| 21 bottom | |||
Tek 555 1050 7.jpg | Type 21 and 22 | Tek 555 1050 7.jpg | Type 21 and 22 | ||
</gallery> | |||
'''Type 21A''' | |||
<gallery> | |||
Tek 21a front.jpg| 21A front | |||
Tek 21a top.jpg| 21A top | |||
Tek 21a bottom.jpg| 21 bottom | |||
Tek 21a trigger board.jpg| 21A TD trigger board | |||
</gallery> | </gallery> | ||
[[Category:500 series plugins]] | [[Category:500 series plugins]] | ||
Revision as of 03:34, 9 December 2019
Template:Plugin Sidebar 2 The Tektronix Model 21 and successor 21A are time base plug-ins for the 555 dual-beam scope.
Type 21 is suggested as the upper beam time base, whereas sister model Type 22(A) is for the lower beam as it contains delayed trigger circuitry, and only the lower beam horizontal section is provided with delayed trigger pickup circuitry. The Delay multiplier control pot is also provided on the lower beam section.
Key Specifications
- please add
Pictures
Type 21
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21 front
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21 top
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21 bottom
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Type 21 and 22
Type 21A
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21A front
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21A top
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21 bottom
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21A TD trigger board
