On Thursday, August 6, 2015 at 10:41:36 AM UTC-4, wrote:
http://ecetutorials.com/wp-content/u...ode-symbol.jpg

I'm reading isolating 12V fields with a diode places the band toward ground

but isolating ground leads past a power drop device from 12V isolates with band toward the device away from ground.

is this true or false ? exceptions ?

...........................

wiring relays in a vehicle alarm circuit, I was isolating flow with open diode end always facing the 12V supply wether diode was before a sensor or horn or after on the ground side.

then I read that ground side diodes are wired with the diode open side facing the ground with the band facing the sensor or horn ...

?