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Elecy techy question
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Author:  rehab1964 [ Wed Sep 30, 2009 6:29 pm ]
Post subject:  Elecy techy question

Ok, this may be a very stupid question........

My Princess is positive earth and has a cigarette lighter, I can't run my sat nav in said lighter socket as it blows the inline fuse (presumably becasue the sat nav in negative earth)

Is there any sort of "inverter" I can use to convert the positive earth power coming out of the cigarette lighter to negative earth for the sat nav?

I realise I could change the car to negative neart but would prefer not to do that as at present everything works very nicely and I don't want to tempt fate

cheers

Author:  mini maxx [ Wed Sep 30, 2009 6:37 pm ]
Post subject: 

MELWAYS :lol:

Author:  rehab1964 [ Wed Sep 30, 2009 6:42 pm ]
Post subject: 

mini maxx wrote:
MELWAYS :lol:


won't tell me how fast I'm going, in these cash strapped times when speed cameras are revenue raisers I'd like to have a slightly more accurate idea of how fast I'm going than my speedo provides

Author:  Morris 1100 [ Wed Sep 30, 2009 6:45 pm ]
Post subject: 

If the cigarette lighter is not mounted to the steel body (like the wooden dash) you could just swap the wires in the back of it.
Another way is to make an extension lead that plugs in to the lighter and you swap the wires on the extension plug so that you have the positive in the centre.

Author:  niceboy1275 [ Wed Sep 30, 2009 6:46 pm ]
Post subject: 

Kev, the princess has what, 4 cows worth of leather interior and about 6 trees worth of timber trimming? I think she'd take a while to wind up to an illegal speed... put the nav in that hot rod of a wolsely! :D

Author:  850man [ Wed Sep 30, 2009 6:49 pm ]
Post subject: 

Just turn the Battery around and make it negitive earth. problem solved, ill be at the bar if you need me...

Author:  mini maxx [ Wed Sep 30, 2009 6:49 pm ]
Post subject: 

rehab1964 wrote:
mini maxx wrote:
MELWAYS :lol:


I'd like to have a slightly more accurate idea of how fast I'm going than my speedo provides

But isnt that part of owning a classic car :wink:

Author:  rehab1964 [ Wed Sep 30, 2009 7:43 pm ]
Post subject: 

Morris 1100 wrote:
If the cigarette lighter is not mounted to the steel body (like the wooden dash) you could just swap the wires in the back of it.
Another way is to make an extension lead that plugs in to the lighter and you swap the wires on the extension plug so that you have the positive in the centre.


So I wouldn't need to earth an extension lead? that sounds like it would work! thanks

Author:  rehab1964 [ Wed Sep 30, 2009 7:44 pm ]
Post subject: 

niceboy1275 wrote:
Kev, the princess has what, 4 cows worth of leather interior and about 6 trees worth of timber trimming? I think she'd take a while to wind up to an illegal speed... put the nav in that hot rod of a wolsely! :D


it's the down hill runs that kill us!

as for the Wolseley, it has no speedo at all these days

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