291: Difference between revisions
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|class=Test fixture | |class=Test fixture | ||
|series= | |series= | ||
|summary= | |summary=diode switching time tester | ||
|image=Tek 291 3.jpg | |image=Tek 291 3.jpg | ||
|caption= | |caption=Tektronix 291 | ||
|introduced=1962 | |introduced=1962 | ||
|discontinued=(?) | |discontinued=(?) | ||
|designers= | |designers= | ||
|manuals= | |manuals= | ||
* [[Media:070-361.pdf|Tektronix 291 Manual]] ( | * [[Media:070-361.pdf|Tektronix 291 Manual]] (OCR) | ||
}} | }} | ||
The '''Tektronix 291 Diode Switching Time Tester Power Supply | The '''Tektronix 291''' is a Diode Switching Time Tester Power Supply [[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. | ||
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==Pictures== | ==Pictures== | ||
<gallery> | <gallery> | ||
Tek 291 system.jpg | 291 with TF-1 | Tek 291 system.jpg | 291 with TF-1 Adapter | ||
Tektronix 291 tf1.jpg | TF-1 | Tektronix 291 tf1.jpg | TF-1 Front | ||
Tek 291 tf1 rear.jpg | TF-1 | Tek 291 tf1 rear.jpg | TF-1 Rear | ||
Tek 291 tf1 inside.jpg | TF-1 | Tek 291 tf1 inside.jpg | TF-1 Inside | ||
Tek_291_3.jpg | 291 | Tek_291_3.jpg | 291 Front | ||
Tek 291 top.jpg | Tek 291 top.jpg | ||
Tek 291 bottom.jpg | Tek 291 bottom.jpg | ||
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Tek 291 powersupply.jpg | Tek 291 powersupply.jpg | ||
Tek 291 airline.jpg | Tek 291 airline.jpg | ||
Tek 291 schem.png | 291 | Tek 291 schem.png | 291 Schematic | ||
Tek 291 altfix 1.jpg | | Tek 291 altfix 1.jpg | Adapter 017-0075-00 and Test Jig 013-0080-00 | ||
Tek 291 altfix 2.jpg | | Tek 291 altfix 2.jpg | Adapter 017-0075-00 and Test Jig 013-0080-00 | ||
Tek 291 altfix 3.jpg | | Tek 291 altfix 3.jpg | Adapter 017-0075-00 and Test Jig 013-0080-00 | ||
</gallery> | </gallery> | ||
Latest revision as of 17:31, 7 December 2023
The Tektronix 291 is a Diode Switching Time Tester Power Supply 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). The TF-1 was later superseded by an adapter 017-0075-00 to be used with the diode test jig 013-0080-00 (see 017-0075-00 for a picture).
Pictures
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291 with TF-1 Adapter
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TF-1 Front
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TF-1 Rear
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TF-1 Inside
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291 Front
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291 Schematic
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Adapter 017-0075-00 and Test Jig 013-0080-00
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Adapter 017-0075-00 and Test Jig 013-0080-00
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Adapter 017-0075-00 and Test Jig 013-0080-00
