On Tue, 23 Oct 2007 20:53:44 -0000, "rigdent" <[EMAIL PROTECTED]> wrote:
> >> Having read earlier posts about some TV being unhappy with a >> direct 12v connection when engine is running perhaps I should >> be a bit cautious about using 12v. Is there any way to check >> whether a voltage greater than 12v will cook it? >> >Run it up in a plastic bag and if the magic smoke comes out you >squeeze the bag and push it back in. > >Or you could attatch it to a variable power supply and slowly wind up >the volts while watching the current. If the current starts to rise >then back off quick if it stays much the same then its probably got an >internal voltage regulator. > >If all else fails read the instructions the techy bit at teh back may >give an allowable voltage range > Or just buy a voltage regular - that limits the voltage regulator - that accepts 12 to say 18V's in but provides a regulated 12V out. One of the many boat electrical system suppliers must have such a device. Mind you - it would probably cost more than the TV - but really the boat yards should put such systems in as standard - but of course we know that they don't !!! -- Malcolm
