Hello, please excuse my ignorance when it comes to the analogue
design. However, I would like to amplify the output of the 5 bit DAC
of a PIC microcontroller (PIC18F46k22) to drive a small speaker. I
know its crude and that I probably could to better but its already
built in, no work required. So my question is at 5 volts how much
current to I need to add to the base of a 2N2222 to get its linear
region (I believe thats the term).

Schematic:

Collector of Transistor -> Vcc +5v
Vcc +5v -> X Value Bias Resistor -> Base Of Transistor
DAC Pin of Microcontroller -> 1k resistor -> Base Of Transistor
Emitter of Transistor -> Speaker -> Capacitor -> Ground +0v

Thank you !
Jason White
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