Transistor not fully turning off.

...and what happens to the base-emitter current? The base and collector are at +5v, and the emitter is at ground. Is there no current passing from the base to the emitter in this configuration? I can't remember.

At this level of complexity, not in a long time! This should be three components. Two resistors and a transistor.

And I make as many of these kind of mistakes if I am using a schematic or not. A schematic does not prevent me from installing a transistor incorrectly. I have blown up my share of transistors, and most using a schematic. :slight_smile: