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Electrical

The male connector is the most commonly used connector at the end of a coax. The connector, which is constructed of brass and plated with chrome, silver, or gold, must match the type of cable used.

Wireless systems depend on this wire Issue 94 : Jan/Feb 2014 Coaxial cable, or coax, is used for transferring radio-frequency energy from one place to another. It was invented by English engineer Oliv...

liff’s small light, aimed at the object of interest in the head, sheds enough light for its purpose without impairing his night vision, main photo. To make his LED lamp, Cliff glued two pieces of plastic together. The big hole on the back, upper above, houses the wiring; the small hole is for the LED. Another view of the base shows the hole on the top for the switch, above. The cross-hatched area is to be cut off. Cliff says it’s best to do that after drilling the holes.

Low-wattage lighting at low cost Issue 107 : Mar/Apr 2016 One of the best things that has come along for boaters (and homeowners) lately has been LEDs for lighting. They’re cooler in operation, seemin...

A solar yard light, at top, contributes key components for a darkness-actuated switch for an LED anchor light. An off-the-shelf photo switch mounted on a window can control an incandescent light in the same way, above.

Put an anchor light on automatic Issue 109 : Jul/Aug 2016 After receiving a citation for not having an illuminated anchor light while moored in Miami’s Biscayne Bay, I did some research on how to buil...

Nine of Cups has shaft-driven electric power.

Generating electricity via the prop shaft Issue 108: May/June 2016 When we are anchored for any period of time, our solar panels and wind generator pretty much keep up with our power needs. On a passa...

battery monitor

An alternator puzzle leads down an illuminating electrical rabbit hole. Issue 130: Jan/Feb 2020 For several days while anchored off a remote Pacific island, wind and solar power took care of the batte...

new battery strap

Rethinking a battery lifting strap results in a longer-lived piece of essential boat gear. Issue 130: Jan/Feb 2020 Batteries are heavy. In a sailboat they are best positioned low, near the centerline,...