On 25/01/2011 23:48, RussellMc wrote:
> At $11, a bargain.
> Give up coffee and lunch for a week and buy one.
> NB remove any tinfoil hats before use.
> Note that 12 volts can kill and has killed.
>
Agreed.
in this application even an isolated battery back must be current=20
limited form pickup probes.

--=20
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