Getting two signals, from 1) parallel port of computer and 2) photodiode taped to the computer screen, into an EEG headbox... Needed to electrically isolate the computer from the headbox, reduce the voltages, and get the signals to be relative to the same ground without interfering with each other.
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timeasmymeasure
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Date: 2012-04-04 02:55 pm (UTC)I can't tell from the breadboard. What were you building?
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Date: 2012-04-04 05:19 pm (UTC)