Screech
New Member
I realise that in a npn transistor, the collector and emitter contacts are normally open until current enters the base and then the collector/ emitter closes..bla bla bla.
but, for the PNP transistor, is the emitter/collector contacts closed untill the base is has current flowing though it,,,,,bla,bla bla?????????
I have two PNP transistors at home, and one hase the collector/emitter contacts normally open.
My other PNP(darlington) has the two contacts normally closed.
I realise that npn and pnp transistors are wired up opposite.
Thanks for your replies.
but, for the PNP transistor, is the emitter/collector contacts closed untill the base is has current flowing though it,,,,,bla,bla bla?????????
I have two PNP transistors at home, and one hase the collector/emitter contacts normally open.
My other PNP(darlington) has the two contacts normally closed.
I realise that npn and pnp transistors are wired up opposite.
Thanks for your replies.