Quote Originally Posted by Art View Post
Obviously you are the same person as on All About Circuits forum
where the project is also posted.
Short answer is YES.. BC548B is a NPN transistor.

Some substitutes are:
BC109C, BC149C, BC549 & 9014.
Cheers,
Art.
hehehe^^...

THANK YOU very very much^^ now im satisfied...for this transistor^^ maybe for this coming days..i need to ask some question about in program but for now on we need to do this circuit first...anyway

THANK YOU AGAIN..^^ GOD BLESS