In the AMZ article on YAFF it says:
MPS2369 is sometimes called a 2N2369 or PN2369

is this always the case, for other transistors?
is a 2N2222 = MPS2222 = PN2222? for instance...
they sure are priced differently over at futurlec!
2N2222 = $0.29
MPS2222A = $0.05
PN2222 = $0.10

another example is the 2369 , very different prices and different descriptions...
MPS2369 = NPN Switching Transistor = $0.05
2N2369 = NPN General Purpose = $0.60

did anyone here buy the futurlec transistor pack? if...

EDIT:
say i wanted to change a NPN circuit to PNP is all i have to do is swap the polarity of the electros put in the pnp's and make it positive ground?

i messed with it on paper and it looks right but thought i'd ask anyways.

I don't know if you guys are interested, but I have an old transistor substitution handbook from 1965. It has pinouts for many obsolete transistors, as well as other information. If someone at the forum was interested in scanning it and putting it into PDF form, I would be happy to send it out to them to do so. Let me know if this interests you.

There is also an impressive sound sample... :)

Direct link to google translation doesn't work ???