Its output voltage may drop from around 4 volts when supplying zero current to 2 or 3 volts when supplying just a few milliamps. If overloaded, it can be damaged in a way that it now only outputs say 2 or 3 volts when supplying zero current.
On Thu, 18 Mar 2004 17:41:21 -0600 (CST), Ken S <[EMAIL PROTECTED]> wrote: >The parallel port >is probably the easiest way to do what you’d like, but be very careful >as the parallel port I/O can’t source/sink very much current, and you >can burn it out quite easily.