"Pieter" wrote in message
...
On Thu, 14 Feb 2008 11:49:42 -0600, msg wrote:

James Sweet wrote:

"Camsid" wrote in message
...

I have tons of 2N5038 150V 30Amps, many other TIP32x. Wiki said NPN is
so
much better than PNP's I know that but I still want to do some
experiment.

I wonder what wiki?

One is not "better" than the other, but rather some applications call
for
NPN, some for PNP, and others require both. It depends what you're
doing.

Depending on the wiki, perhaps the reference was historical; in the late
1950's - early 1960's there was a lot of buzz about new 'mesa' NPN
transistors
which had hugely improved characteristics over previous mostly PNP
processes.

Michael

Stille there are some small differences. Compare the end 70's
transistors like BC547/BC557, and you will see that the NPN one
usually has somewhat more bandwidth or other better parameters. I was
taught that the NPN's tend to be (this is not a rule) a little more
robust when you overload them. I haven't check the latest transistors.

Pieter



Ok, you all are smart. I was just using Wiki's stupid editor as a reason
to get you to exchange stuffs...heehe. You know what I mean? The American
Way. To be honest with you I don't like NPN, most of them takes so much
Base current which means you have to buy a big resistor if you deal with
the final output.