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Old 22nd April 2012, 02:23 AM   #1
diyAudio Member
Join Date: Sep 2006
Default Irf540 question

I cant think tonight.. Does the 540's go in the negative or positive rail ?
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Old 22nd April 2012, 09:05 AM   #2
diyAudio Member
Join Date: Nov 2003
Location: Louisiana
It depends on the amplifier.

If the third leg of the 540 is connected to the speaker terminal, it is powered from the positive rail.

If the center leg connects to the speaker terminal, it is powered from the negative rail.
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