From: John Tserkezis 
Reply-To: Fidonet AVtech Echo 

Bob Lawrence wrote:

>  Why don't you just buy a 6V battery? And trickle charge it off your
> 12V system with a 12V/5W light bulb?

  Because it'll only go for as long as the 6v battery has enough herbs to make 
it go.

  That and, that "light bulb" charging technique will evenutally
float charge 
the 6v battery to 12.  Or, at least try, killing it in the process.

>  Like Brenton, I can do the sums and I'm probalby stupid enough to
> actually build my own SMPS, but anyone with half a brain looks for the
> lazy way. Lazy is best, and it always works. Sometimes, you even
> finish the project.

  Geeze, do it properly.

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