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Old 17-09-2020, 11:16   #1
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Help identifying electrical gizmo from 1990 yacht

Our new to me 1990 Compass 47 has an electrical device that is some sort of transformer (I believe). It is fed by (at least) a lead from the alternator. It is a large (about a foot in diameter) donut with a selector dial and a heat sink. I haven't traced the outputs yet.

What is this and what does it do?

If you had one, would you replace it with a modern bit of electronica?

Sorry the picture is oriented wrong... I haven't figured out the image sharing on this forum yet.

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Old 17-09-2020, 11:29   #2
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Re: Help identifying electrical gizmo from 1990 yacht

Could it be a DC to AC generator?
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Old 17-09-2020, 11:42   #3
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Re: Help identifying electrical gizmo from 1990 yacht

Looks like a plasma containment field generator for the warp drive.

Wow. This is the most interesting thing I’ve ever seen on a boat. No clue whatsoever. It’s definitely a bunch of windings. But for what?

Turn it up to 6 and see what it does. Ha ha ha.

Truly a fascinating discovery.

Are there more pics? Especially of the connections to these windings?
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Old 17-09-2020, 11:55   #4
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Re: Help identifying electrical gizmo from 1990 yacht

It appears the blue wire just below the knob is connected to the windings. Substantial wire size.
If it does turn out to be a plasma containment field generator, I will give you $20 for it
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Old 17-09-2020, 12:18   #5
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Re: Help identifying electrical gizmo from 1990 yacht

Did the previous owner race the boat? It appears that he installed an illegal warp drive in order to get to the finish line before he left the start line.
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Old 17-09-2020, 13:24   #6
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Re: Help identifying electrical gizmo from 1990 yacht

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Originally Posted by S/V Adeline View Post
Could it be a DC to AC generator?
Or maybe an isolation transformer?
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Old 17-09-2020, 13:28   #7
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Re: Help identifying electrical gizmo from 1990 yacht

Maybe a Flux Capacitor (as in "Back to the Future")?
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Old 17-09-2020, 14:06   #8
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Re: Help identifying electrical gizmo from 1990 yacht

Youíll have to trace the wiring to be sure. My guess would be a transformer with various taps, selected by the switch to adjust the output voltage. But from what voltage to what voltage, and what current is anybodyís guess.
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Old 17-09-2020, 17:09   #9
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Re: Help identifying electrical gizmo from 1990 yacht

Quote:
Originally Posted by Chotu View Post
Looks like a plasma containment field generator for the warp drive.

Wow. This is the most interesting thing Iíve ever seen on a boat. No clue whatsoever. Itís definitely a bunch of windings. But for what?

Turn it up to 6 and see what it does. Ha ha ha.

Truly a fascinating discovery.

Are there more pics? Especially of the connections to these windings?
Star Trek has invaded the Forum yet again this week! (Have you been talking to Mike O'Reilly, Chotu?)

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Old 17-09-2020, 17:11   #10
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Re: Help identifying electrical gizmo from 1990 yacht

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Originally Posted by tkeithlu View Post
Did the previous owner race the boat? It appears that he installed an illegal warp drive in order to get to the finish line before he left the start line.


You guys are hilarious!
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Old 17-09-2020, 17:19   #11
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Re: Help identifying electrical gizmo from 1990 yacht

That looks like a transformer, on top of that little gray box with the numbers on it person might want to think that that's a timer, but it isn't I would say that it's a selector for one circuit to the next get your multimeter out and start running down, put it on one, and see where the electricity is put it on two, and see where the electricity is, ECT. Sir that is my best guess, and remember it's only a guess, and most of all remember when playing with electricity be safe 110 to get you
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Old 17-09-2020, 18:09   #12
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Re: Help identifying electrical gizmo from 1990 yacht

Besides flux capacitor, it also sets alternator output
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Old 17-09-2020, 18:18   #13
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Re: Help identifying electrical gizmo from 1990 yacht

Looks like an old manual alternator regulator.
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Old 17-09-2020, 18:21   #14
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Re: Help identifying electrical gizmo from 1990 yacht

The Trekkies don't have to talk to one another. They communicate by quantum entanglement.
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Old 17-09-2020, 19:02   #15
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Re: Help identifying electrical gizmo from 1990 yacht

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Besides flux capacitor, it also sets alternator output
You know, I think your final electrical diagram for Jedi isnít right. This was the component you were missing!
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