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Is the output from a transistor sensor circuit analogue or digital? I know that you sometimes need a pull up or down resistor due to a very small current flowing through the transistor even when it should be off. However, in the circuit shown below for example, is the output signal analogue or digital. I think it should be analogue but the my notes on transistors are in the digital electronics section?
http://www.kpsec.freeuk.com/images/tranldr2.gif
Thanks,
A.
http://www.kpsec.freeuk.com/images/tranldr2.gif
Thanks,
A.
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