How do you tell PNP from NPN

[Glen Zook]

Take a VOM in the resistance measurement mode and put
the negative lead on the base.  Connect the positive
lead to either the emitter or collector.  If you get a
relatively low reading then the transistor is PNP
("point in pointer" on a schematic).  If you get a
high reading, reverse the leads, if the reading is
lower then you have an NPN transistor ("not pointed
in" on a schematic).

Glen, K9STH


--- Dan Pividal N4VET <OTAKEBI at AOL.COM> wrote:

Do any of you know a sure fire way to tell if a
transistor is NPN or PNP?

=====
Glen, K9STH

Web sites

http://home.attbi.com/~k9sth
http://home.attbi.com/~zcomco

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