- 31 May 2001
- Boat Chichester, me Wiltshire
I have a Garmin 12 which needs a 6v supply, as oposed to the xl which will take a 12v supply. One option to get a cost effective supply, as oppose to the £30+ for cigarette lighter supply type with a built in volt dropper, would be to have a pair of identical resistors in series across the 12v supply and tap off between them. What I have not a clue about is the ohm size of suitable resistors. Anyone out there with the answer please, or any other way to achieve the same result?