You probably need a lower value resistor between 'drive' and 'base' or the transistor can't turn fully on.
Ok, I wil try. In the above example my base current is 1.6, 2, 5 mA, with a 1kOhm resistor, so I am in OutputPin safe area
Thanks for your answer
[/quote]
Also...grab a multimeter and check that the voltages on collector, base and emitter all make sense.