Quote:
Originally Posted by peter_4059
Is there a way to test the PWM dew controller (using a multimeter) to see if this is a problem? Would you see a voltage between the earth on the input to the PWM and the outer shell on the outlet when the load is turned down to minimum?
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Just measure the RCA outer shell to earth with the PWM on or off. If you see a pulsing 12V or 12V then just take care with your RCA connectors heat shrink cover them.