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I have an NTE2013 which I want to use with an Arduino. I may be driving the base pins directly off of the Arduino or perhaps off of a 74HC595. Should I use resistors between the outputs and the base inputs to the NTE2013 to limit current? If so, about what resistor value ranges would work best?

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The NTE2013 has the base current-limiting resistors (2700Ω) built in. You can connect its inputs directly to the '595 outputs.

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That's what I suspected from the documentation. I just wanted to make good darn and sure. Thanks! – Big Endian Sep 14 '12 at 22:19

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