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Which wire is positive?
I have an electret mic that I want to use, but it has green and a black wires on it, would green be positive? Or would black be?
I have an electret mic that I want to use, but it has green and a black wires on it, would green be positive? Or would black be?
Comments
11 years ago
If it's an electret mic, the wire connected to the case (measure with a multimeter if not obvious) is ground.
11 years ago
For EU mains supplies
BROWN is HOT for one phase, Black for an other, and GRAY the other, BLUE is neutral, green/yellow is earth.....
Which for OLD UK phasing (Blue-red-yellow - and black) makes for interesting fireworks.
11 years ago
Black is usually neg. but it may not be conventional color coding. Unless it's an important/expensive piece I'd just choose a color and hook it up if it doesn't work then reverse them.