Thanks for all the replies, always useful to see how others do things..

I have always done my power and ground exactly the way Gerhard=20
mentioned, with the T and net voltage for power, and an unfilled inverse=20
triangle for circuit ground. A triangle/arrow and circle seem to be the=20
other popular choices.
For chassis ground I have an inverse T with three slanted lines (a bit=20
like Joe's but with less lines), and supply ground as the inverse three=20
line triangle.
FWIW, I ended up going with the T (rather than the triangle as pondered=20
about previously) as I feel most comfortable with that one and have=20
always used it in my other schematics.


--=20
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