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Al,
for the 12 volt, I used an old computer power supply, and it is about 15 meters from the pier (inside the hanger). Once it is 12 volt DC it is a simple 2 core wire that is slightly underground along the kerb/grass edge. From the ground it sneaks into the bottom, and up inside the hollow pipe, then out to a selection of four RCA female sockets. These sockets are "up under, and pointing down", so as to reduce the water problems.
The whole thing was made when I had a G-11, and as well as the 4 RCA, there is a simple fitting to give 12 volts to the mount (then the G-11). RCA's get used for dew heaters filter wheel etc.
Only snag is I "stalled" the 12 volts one night with a camera that drew more power than I thought. Electricity was never my strong point.
Go for it.
Gary
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