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(New page: * [http://bama.edebris.com/download/tek/291/Tek%20291.pdf Tektronix 291 Manual (PDF)])
 
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* [http://bama.edebris.com/download/tek/291/Tek%20291.pdf Tektronix 291 Manual (PDF)]
{{Instrument Sidebar
|manufacturer=Tektronix
|model=291
|class=Test fixture
|series=
|summary=Diode Switching Time Tester
|image=Tek 291 3.jpg
|caption=Tek 291 front
|introduced=1962
|discontinued=(?)
|designers=
|manuals=
* [[Media:070-361.pdf|Tektronix 291 Manual]] (PDF)
* [http://bama.edebris.com/download/tek/291/Tek%20291.pdf Tektronix 291 Manual @ BAMA] (PDF)
}}
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.
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==
<gallery>
Tek 291 system.jpg
Tektronix 291 tf1.jpg
Tek 291 tf1 rear.jpg
Tek 291 tf1 inside.jpg
Tek_291_3.jpg
Tek 291 top.jpg
Tek 291 bottom.jpg
Tek 291 inside.jpg
Tek 291 powersupply.jpg
Tek 291 airline.jpg
Tek 291 schem.png
Tek 291 altfix 1.jpg
Tek 291 altfix 2.jpg
Tek 291 altfix 3.jpg
</gallery>
 
[[Category:Introduced in 1963]]
[[Category:Accessory power supplies]]
[[Category:Diode testers]]

Revision as of 11:32, 20 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