In article , Ned Simmons
says...

But the question that got this all started was whether a
regulator is analogous to a transformer and whether it's
possible to equate voltage and current to pressure and flow
in a compressible medium.

I think *that* question is pretty well answered.

The point is seen in reverse, when one realizes that
any attempt to illustrate electrical principles using
the old 'pump, tank, pipe, valve' teaching tools
does indeed have certain distinct, um, limitations.

Jim

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