291: Difference between revisions

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File:Tek 291 airline.jpg
File:Tek 291 airline.jpg
Image:Tek 291 schem.png
Image:Tek 291 schem.png
File:Tek 291 altfix 1.jpg
File:Tek 291 altfix 2.jpg
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[[Category:Introduced in 1963]]
[[Category:Introduced in 1963]]
[[Category:Accessory power supplies]]
[[Category:Accessory power supplies]]

Revision as of 12:06, 20 November 2015

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).