Boat Building Forum

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Re: Lighting a compass
By:Brian C.
Date: 11/23/1998, 6:52 pm
In Response To: Re: Lighting a compass (Paul Jacobson)

> Why? Because it may be cheaper, lighter, have less friction, or get coated
> with a layer of synthetic rubber that lasts for 50,000 miles. The wheel is
> always being reinvented -- sometimes we call that progress.

Gee I should have know that after all I'm an engineer :)

> Electric wires near a compass WILL cause
> it to deflect, affecting accuracy. The lower the current and the further
> the wires are from the compass the less the effect. A single LED doesn't
> draw much power, so the effect should be very slight, but if you can find
> a clear styrene plastic rod and convert it into a lightpipe by epoxying an
> LED at one end, you can increase the distance from the LED to a point
> where electrical influences are trivial.

Thaks for reminding about the hall effect. I was actually more concerned about melting the dumb thing. I guess an LED would be bright enough.

How about a fiber optic run from the running lights?

Messages In This Thread

Mounting a compass
Robert Woodard -- 11/19/1998, 3:29 pm
Re: Mounting a compass
Andy Gere -- 11/30/1998, 3:35 pm
Re: Mounting a compass
Robert Woodard -- 11/30/1998, 5:20 pm
Re: Mounting a compass(pix, no kidding this time)
Andy Gere -- 12/2/1998, 1:48 am
Re: Mounting a compass(pix, no kidding this time)
Robert Woodard -- 12/2/1998, 5:35 pm
Re: Mounting a compass (pix)
Andy Gere -- 12/2/1998, 1:41 am
Lighting a compass
Brian C. -- 11/23/1998, 2:51 pm
Re: Lighting a compass
Nolan Penney -- 11/24/1998, 8:46 am
Re: Lighting a compass
Paul Jacobson -- 11/23/1998, 6:18 pm
Re: Lighting a compass
Brian C. -- 11/23/1998, 6:52 pm
Lighting your way
Paul Jacobson -- 11/24/1998, 4:11 am
Re: Lighting a compass
Scotty -- 11/24/1998, 12:40 am
Re: Lighting a compass
Alex Sheridan -- 11/23/1998, 2:50 pm
never mind here it is thanks :)
Brian C. -- 11/24/1998, 5:09 pm
West Marine contact?
Brian C. -- 11/24/1998, 5:03 pm
battery pac
Brian C. -- 11/23/1998, 6:54 pm
Re: battery pac
Alex Sheridan -- 11/23/1998, 8:03 pm
Re: battery pac
Robert Woodard -- 11/23/1998, 7:37 pm
battery ballast
Brian C. -- 11/24/1998, 12:28 pm
Re: battery ballast
Robert Woodard -- 11/24/1998, 1:05 pm
Re: battery ballast
Brian C. -- 11/24/1998, 2:05 pm
Re: battery ballast
Robert Woodard -- 11/24/1998, 4:09 pm
is it a _sealed_ battery?
Brian C. -- 11/24/1998, 4:39 pm
Re: is it a _sealed_ battery?
Robert Woodard -- 11/24/1998, 4:47 pm
Re: Mounting a compass
Pete Ford -- 11/15/1998, 10:45 pm
Re: Mounting a compass
Wayne Bergman -- 11/16/1998, 6:39 pm
Re: Mounting a compass
Jerry Weinraub -- 11/17/1998, 7:47 am
Re: Mounting a compass
Scotty -- 11/19/1998, 1:33 am
Hamilton contact info
Pete Ford -- 11/16/1998, 7:57 pm
Re: Mounting a compass
Jon Young -- 11/16/1998, 4:29 pm
Re: Posting a picture
Don Varnau -- 11/16/1998, 11:21 pm
Re: Mounting a compass
Robert Woodard -- 11/16/1998, 1:30 pm
Re: Mounting a compass
John Lange -- 11/16/1998, 2:16 pm
Re: Mounting a compass
Pete Ford -- 11/16/1998, 1:41 pm
Re: Mounting a compass
Nick Schade -- 11/16/1998, 1:04 pm
Re: Mounting a compass
Paul Jacobson -- 11/15/1998, 2:57 am
Re: Mounting a compass
Nick Schade -- 11/18/1998, 9:05 am
Re: Mounting a compass
Nolan Penney -- 11/19/1998, 6:24 am
Re: Mounting a compass
Nick Schade -- 11/19/1998, 9:46 am
Compass vs GPS
Jon K. -- 11/18/1998, 11:11 am
Re: Compass vs GPS
Nick Schade -- 11/19/1998, 10:22 am
Re: Mounting a compass
Robert Woodard -- 11/15/1998, 3:49 pm
Re: GPS vs Compass
Don Beale -- 11/16/1998, 12:20 am
Re: GPS vs Compass
Nolan Penney -- 11/16/1998, 11:06 am
Re: GPS vs Compass
Bruce Moulton -- 11/15/1998, 9:08 pm