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How do i know if a transistor is of PNP or NPN type?

i want to know how to recognize the type of transistor.

IF its a transistor, then if its NPN a diode check measuring from the base +ve to the collector should show roughly 0.6V and likewise to the emitter. Reversing the connection should show no conduction. Likewise, if its a PNP transistor, measuring the from the base -ve to the collector should ALSO show 0.6V and likewise ALSO to the emitter. Reversing this connection should show no conduction. ....and you could always look up the data sheet....
lemonie7 years ago
See my answer on your other question, if this doesn't do it let me know. It's essentially the same answer I gave you on this question:
https://www.instructables.com/answers/How-to-know-if-the-given-component-is-IC-or-Transi/

(It does work)

L