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12th August 2012, 05:08 PM
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#3 |
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diyAudio Member
Join Date: Nov 2003
Location: Louisiana
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The input and output voltage of the switching transistor should be almost identical. If there is a significant difference, short the collector and emitter to see if the relay will switch. If they are almost identical, determine why there is only 10.8v on the transistor instead of 12+v.
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