Semiconductor Continuity Checker: Difference between revisions
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It resembles the continuity checking part of the Hy-Tronix 900, which is described in [http://w140.com/US3601698.pdf US Patent 3601698]. | It resembles the continuity checking part of the Hy-Tronix 900, which is described in [http://w140.com/US3601698.pdf US Patent 3601698]. | ||
==Pictures== | |||
<gallery> | <gallery> | ||
Semiconductor continuity checker p54.jpg | Semiconductor continuity checker p54.jpg | ||
Latest revision as of 22:13, 28 November 2023
The Tektronix Semiconductor Continuity Checker was probably made in 1974. It resembles the continuity checking part of the Hy-Tronix 900, which is described in US Patent 3601698.
Pictures
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The top panel is attached by two harmonica connectors: one for the power switch and one for everything else
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The amber lamp flashes when the instrument is on but no device is inserted
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Two green lamp illuminate when a good NPN is inserted
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Open circuit voltage applied to the diode test fixture
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Hy-tronix 900
