21 (plug-in): Difference between revisions
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{{Plugin Sidebar | {{Plugin Sidebar | ||
|manufacturer=Tektronix | |||
summary=Time base plug-in| | |series=555 | ||
image=Tek 21 front.jpg| | |type=Type 21 | ||
caption=Type 21 front.jpg| | |summary=Time base plug-in | ||
introduced=1959 | | |image=Tek 21 front.jpg | ||
discontinued=(?) | | |caption=Type 21 front.jpg | ||
|introduced=1959 | |||
manuals= | |discontinued=(?) | ||
|designers= | |||
|manuals= | |||
* [[Media:tek_type_21_22_fcp.pdf|Type 21 and 22 Factory Calibration Procedure (PDF, OCR)]] | * [[Media:tek_type_21_22_fcp.pdf|Type 21 and 22 Factory Calibration Procedure (PDF, OCR)]] | ||
* [[Media:Tektronix 21a-22a.pdf|21A and 22A section of 555 manual (PDF)]] | * [[Media:Tektronix 21a-22a.pdf|21A and 22A section of 555 manual (PDF)]] | ||
Latest revision as of 10:14, 13 August 2021
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
