Re: Testing Transistors.
If you see results as shown above the transistor is generally good. On very few occasions I have seen transistors which are OK on a diode test, but have no gain.
Faulty transistors will generally have open circuit or short circuit junctions. The former will read high resistance both ways and the latter will show a very low or zero volt drop both ways.
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Graham. Forum Moderator
Reach for your meter before you reach for your soldering iron.
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