I feel obligated to share my own results since you guys are always
forthcoming with support....Just in case anyone hasn't already figured this
one out...

The LM2940CT-5 LDO Reg. turned out to be a drop-in replacement for LM7805.
It's only rated 1 Amp, which in my ap is OK. Only change was to remove a .1
cap I had on the output and replace it with a 100uF 'lytic cap. The data
sheet calls for a minimum of 22uF, larger is OK.
Ran cool (120F) on 7.67V Input from my 240 (245 today)line & transformer. I
sent a test unit to another site so it could be tested on a 208V line with <
7V Input. Yes I realized that I could have simply done this with a bench
supply, but it's nice to make  non-EE show-me types happy from time to
time...

Thanks for the help 'yall.

> > If it most be a drop in replacement for existing boards, then
> > the LDO is
> > probably the only option.  However, a long term answer is to
> > redesign with
> > a buck regulator (these are the simplest type of switchers).
> > Then you can
> > even use the same transformer for 110-240V.  The extra
> voltage drop at
> > 240V will just cause less power to be drawn instead of making heat.
>
>
>
> Any Suggestions?

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