Setting up a transistor

[Rock_on]

Here comes the noob again hahaha

But this is now more simple than before

Questions are :

1.) how can i set a transistor's operating voltage (ex. 10mA @ 5v)

2.) what does Vb do? (i know a transistor need it to turn it ON but what i mean is, what's the difference between 2v and 3v? Does higher Vb = more gain? Im sure it's no, but what does it do?)

3.) if im using voltage divider as a biasing technique, what should be my Rtop and Rbottom value? ( i know that same value = half the voltage, but what i mean here is how much current do i need? Example, we know that using 2 50K or 2 10k is still = to half the voltage, but the current is different.)

That's it
Please answer

[Rock_on]

Please delete, sorry for the double post

[PRR]

delete

gone to http://www.diystompboxes.com/smfforum/index.php?topic=103323.0