Can someone recommend a good NPN transistor for my scenario? 1mA to the base must allow 20mA from emitter to collector while saturating the transistor. Correctly stated?
A couple of popular low(ish) current npn transistors:
2N3904
2N2222A
For driving simple 20ma leds I like the 2N7000 mosfet transistors, no series base (gate) resistor needed and they are cheap.
Lefty