> I used a 2N3906 and tried the common emitter approach, however I'm
> still getting a voltage drop across the transisitor looks like .8V.
>
> My coil's resistance is about 65 ohms...  Maybe now the drop is due to
> internal resisitance, or is it still the diode drop?  Maybe a p-channel
> mosfet would be better?  Thoughts?

You will ALWAYS have a drop across the transistor (no device is perfect),
however 0.8V is a little on the high side, it should be around 0.3 or 0.4V,
depending on the current. What resistor are you using on the base? What is
driving the base? It sounds like you might not have enough drive current to
get the transistor fully into saturation. TTYL

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