tranny compatibility

[keko]

Hi
I bought a DMM that can measure hfe....so that got me thinking (wich is ok sometimes)

Can a transistor be replaced with ANY other of the same type (NPN) with similar hfe?

I know a local reseller that carries lot's of unkown parts. All the info I can get from them is the type of transistor, and some thech data, like de hfe, but no part number

Thanks!

[petemoore59]

Most all these NPN's are subbable...hfe sometimes matters, biasing might...My exp is that most of the time you can put anything Si npn in there [I don't know which ckt we're refferring to]  and it'll do something...no harm in trying AFAIK as long as the pinout is correct.