I tested the flex feeding the drill.
Drill on...nothing.
Drill off...nothing.
That makes sense, because at the flex you have both 55V legs producing equal but opposing electrostatic fields at all times.
Don't forget this drill is Class 2, Double insulated (no earth). Single Pole Switch.
Switch on... nothing.
Switch Off....Pen lights up from behind chuck back down to switch.
When running you have 55V opposing on the flex, at the switch, and at the motor. When off, you have two 55V opposing legs on the flex and at the switch, but only one 55V leg energized from there to the motor.
9" Grinder Double Pole Switch... nothing all ways.
Do you think it could be anything to do with the Capacitor/suppressor joined up at the Switch?
I think you'd get the same results without the suppressor. The grinder has a double-pole switch, so testing at the motor gives you either both 55V opposing legs or neither, so no indication on or off.
The key is the electrostatic (voltage) field from one or both 55V legs of the supply. If you were looking for an electro
magnetic field, it would be a different story, since that will be produced only when current is flowing.
[This message has been edited by pauluk (edited 10-28-2005).]