Difference between revisions of "291"

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The '''Tektronix 291 Diode Switching Time Tester Power Supply''' was [[introduced in 1963]].
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{{Instrument Sidebar
The 291 uses the [[TF-1]] test fixture.  
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|manufacturer=Tektronix
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|model=291
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|class=Test fixture
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|series=
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|summary=Diode Switching Time Tester
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|image=Tek 291 3.jpg
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|caption=Tek 291 front
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|introduced=1962
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|discontinued=(?)
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|designers=
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|manuals=
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* [http://w140.com/tek_291.pdf Tektronix 291 Manual (PDF)]
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* [http://bama.edebris.com/download/tek/291/Tek%20291.pdf Tektronix 291 Manual (BAMA, PDF, offline?)]
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}}
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The '''Tektronix 291 Diode Switching Time Tester Power Supply''' was [[introduced in 1963]]. The 291 uses the [[TF-1|TF-1 test fixture]].  
  
 
TF-1 fixtures have been known to have issues with bad connections with the diode.
 
TF-1 fixtures have been known to have issues with bad connections with the diode.
In at least one case, a TF-1 has been made to work reliably by replacing the weak
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In at least one case, a TF-1 has been made to work reliably by replacing the weak AlNiCo magnet that holds the axial leaded (magnetic) diode in place, by replacing it with a much stronger FeNdB magnet the same size (easily available on Ebay).
AlNiCo magnet that holds the axial leaded (magnetic) diode in place, by
 
replacing it with a much stronger FeNdB magnet the same size  
 
(easily available on Ebay).
 
 
 
* [http://w140.com/tek_291.pdf Tektronix 291 Manual (PDF)]
 
* [http://bama.edebris.com/download/tek/291/Tek%20291.pdf Tektronix 291 Manual (BAMA, PDF, offline?)]
 
  
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==Pictures==
 
<gallery>
 
<gallery>
 
Tek 291 system.jpg
 
Tek 291 system.jpg

Revision as of 10:04, 18 August 2021

Tektronix 291
Diode Switching Time Tester
Tek 291 front

Produced from 1962 to (?)

Manuals
(All manuals in PDF format unless noted otherwise)
Manuals – Specifications – Links – Pictures

The Tektronix 291 Diode Switching Time Tester Power Supply was introduced in 1963. The 291 uses the TF-1 test fixture.

TF-1 fixtures have been known to have issues with bad connections with the diode. In at least one case, a TF-1 has been made to work reliably by replacing the weak AlNiCo magnet that holds the axial leaded (magnetic) diode in place, by replacing it with a much stronger FeNdB magnet the same size (easily available on Ebay).

Pictures