Quote Originally Posted by HankMcSpank View Post
Re using an NPN....how would that slot into my needs of having a PIC sink the current per LED (in other words the supply voltage to the LED anodes needs to be commonized - how to switch that common voltage with an NPN?).
? ? ? Swap the emitter and collector so power flows in correct direction, then invert PWM values (or not), transistor now conducts on positive instead of NEG. Keep those digital transistors, which are avail. from Mouser in mind to save board space too, they are equipped with internal bias resistors for logic level switching, and they are still very small footprint.