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Dave Plowman (News) Dave Plowman (News) is offline
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Default A1 A2 DC Relays?

In article ,
The Other Mike wrote:
Does A1/2 misidentification cause problems generally? is it common to
ignore polarity in systems with "unquenched" relay's?


Switching a 'live' is generally preferable to switching 'earths'


Really? On car EFI systems, most is ground switched. Gets rid of the need
for a high(er) current positive rail on the PCB - the ground layer
normally being pretty massive.

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