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Posted: Thu Jul 16, 2009 3:32 pm Post subject: transistor test does this reading look correct ? |
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just a quick question regarding testing 2 transistors
transistor 1 is a Silicon PNP Epitaxial Type.
multimeter set to diode function
red probe to base, black to collector: measures 647
red probe to base black probe to emitter measures 655
reverse probes does not measure a reading.
transistor 2 is a Silicon NPN Epitaxial Type.
red probe to collector, black probe to base measures: 654
red probe to emitter, black probe to base measures: 660
reverse probes does not measure a reading.
do these look like they are good transistors and measuring ok ?
thanks |
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jts1957
Joined: 24 Nov 2008 Posts: 2476 Location: Far, Far Away
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Posted: Thu Jul 16, 2009 6:22 pm Post subject: |
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The transistor junctions you tested are GOOD. But what about Collector to Emitter? Should not measire a reading either polarity of leads. |
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