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(correction courtesy of Rolynn Prechtl) |
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On the front panel of the normal 067-0543-00 are a pair of light bulbs that | On the front panel of the normal 067-0543-00 are a pair of light bulbs that | ||
are driven by a comparator circuit. Both of these lights are | are driven by a comparator circuit. Both of these lights are [illuminated] | ||
when comparison occurs. When a voltage to be measured is connected to the | when comparison occurs. When a voltage to be measured is connected to the | ||
input binding posts and the polarity switch is in the correct position, the | input binding posts and the polarity switch is in the correct position, the |