When you turn the screw anti-clockwise to turn up the power is it a 180 degree turn for up one power level or full 360 degree turn.
I.e. the screw head is currently horizontal, so do I turn it until it is horizontal again (180 degrees) or turn it so it goes past horizontal once then becomes horizontal again (360 degrees)
Hope I have explained this clearly enough
Cheers
Damian
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