Posted by mr transistor (18.104.22.168) on April 05, 2003 at 13:54:21:
i have a NPN transistor and want to connect it with a Relay...
but i want to check whether it is NPN or not...how i can do that using a multi-meter..
NPN means = provide positive voltage at the centre pin of transistor...centre pin is mostly collector..
I have placed my transistor in my multi-meter and set the meter on hFE which shows 175 gain...and show nothing i place the transistor in some other arrangment..
any other way ....to confirm
also about PNP transistors...
how to check them?
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