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The '''Tektronix 291 Diode Switching Time Tester Power Supply''' was [[introduced in 1963]]. | {{Instrument Sidebar | ||
The 291 uses the [[TF-1]] | |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= | |||
* [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?)] | |||
}} | |||
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 | 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). | |||
==Pictures== | |||
<gallery> | <gallery> | ||
Tek 291 system.jpg | Tek 291 system.jpg | ||