Transistor

Transistors are current controlled devices. You apply a small amount of current to the base, which allows a large current to flow from the collector. This transistor had a beta of 100. Which means that the current from collector to emitter will be 100 times greater than the current from base to emitter. You've got a 220 ohm resistor for your load, with a 10V supply, so it looks like you'll be wanting about 45mA from collector to emitter. So you'll need at least 450µA at the base. This that big ol' 820k resistor, you only have 11.3µA there, which is only allowing 1.13mA through the collector. Basically, the transistor is just barely turned on. To turn it on fully, you'll need a smaller resistor at the base. To get at least 450µA at the base-emitter junction, with a 10V supply, you'll need a 20K resistor. How did I figure that out? Ohms Law. I know the amperage I want, I know the voltage I have, therefore I can figure out the resistance I need to achieve that. Now, if it were me, I would just put a 10K there and be fine with it. This will let the transistor flow about 90mA+ through the collector. That's way more than we need, but the 220 resistor will keep the current limited to 45mA, while the transistor is turned on hard.

Search for my circuit "Simple BJT Example" it will give you a much better explanation than that clusterfuck of text Kurtz wrote.

I'm sorry you don't understand simple concepts, Justin. I imagine it's frustrating for you.

Thanks kurtz .