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  1. #21

    Re: Mystery Box in Engine Room

    Right, and the transformer only works on AC, right?

  2. #22

    Re: Mystery Box in Engine Room

    It’s definitely a Flux Capacitor.
    SEVEN
    1979 53' MY Hull #563
    Antioch, California

  3. #23

    Re: Mystery Box in Engine Room

    No manuals or diagrams on board?

    Lazzara also used 120V AC to 24V AC transformers for lights (at least around 2009) with automatic relays to switch some of them to 24V DC from the batteries when AC power would be disconnected.

    Could this be something similar with a manual override

    When I buy LED bulbs I have to make sure they are 24V AC/DC but many are nowadays
    Pascal
    Miami, FL
    1970 53 MY #325 Cummins 6CTAs
    2014 26' gaff rigged sloop
    2007 Sandbarhopper 13
    12' Westphal Cat boat

  4. #24

    Re: Mystery Box in Engine Room

    Quote Originally Posted by jim rosenthal View Post
    Right, and the transformer only works on AC, right?
    That's right Jim. The operation of the transformer depends on the constantly building and collapsing fields created by AC in the primary windings to induce a voltage in the secondary (output) windings. Since I'm getting all nerdy this morning: the voltage is induced in the secondary windings during this constantly building and collapsing of the magnetic field around the primary windings by a process called mutual inductance and the resulting output voltage is in direct proportion to the ratio of the primary and secondary windings. 10:1 ratio and the output is 12VAC.

    Opps sorry, short answer: yes.

    Hmmm, not sure if a flux capacitor works with DC or not? :-/

    George
    Last edited by Reefgeorge; 11-10-2019 at 12:25 PM.
    Florida
    2002 Cabo 47
    MAN mechanical 800/8's

    "You can avoid reality, but you cannot avoid the consequences of avoiding reality"

  5. #25

    Re: Mystery Box in Engine Room

    Looks like it was used to feed outlets under the cover boards for electric reels.

  6. #26

    Re: Mystery Box in Engine Room

    That's a crazy way to power a deep drop or dredge reel.
    CRICKET
    1966 HAT50C101
    Purchased 1985 12v71Ns
    Repowered 1989 with 8v92TI
    Repowered 2001 with 3406E

  7. #27

    Re: Mystery Box in Engine Room

    Quote Originally Posted by Cricket View Post
    That's a crazy way to power a deep drop or dredge reel.
    Probably not a bad idea if it can handle the load. I’ve pulled my 12v 8d generator starting batteries down after multiple 800’ drops with the big Kristals pulling grouper.
    "DON'T BELIEVE ANYTHING YOU READ OR HEAR AND ONLY HALF OF WHAT YOU SEE" - BEN FRANKLIN




    Endless Summer
    1967 50c 12/71n DDA 525hp
    ex Miss Betsy
    owners:
    Howard P. Miller 1967-1974
    Richard F Hull 1974-1976
    Robert J. & R.Scott Smith 1976-present

  8. #28

    Re: Mystery Box in Engine Room

    John's little boxes didn't look very hearty to produce a ton of amps, and being sealed how was the heat going to escape from all of the hard work the transformers were doing.
    Wonder if those were an Ocean Yacht add on or previous owner invention? Kind of reminds me of an outdoor lighting setup.

    Scott, what's your opinion of the LP1200 reels compared to the Krystal's?
    We're using 24volt Krystal's for deep drop and 24volt Miya's 15's for our dredges.
    Just unwilling to buck up for what the LP's cost, and also since all the boats now have the LP's I'm a little anti.
    CRICKET
    1966 HAT50C101
    Purchased 1985 12v71Ns
    Repowered 1989 with 8v92TI
    Repowered 2001 with 3406E

  9. #29

    Re: Mystery Box in Engine Room

    Lindgren-Pitman Has always been the commercial duty stuff. I like the digital counter and auto feature on the new reels. Looks like they kind of copied Miya epoc. Big bucks though 5-8k per reel. We’ve had no problems with the Kristals much better than the electra mate 12/0’s they replaced. Would be nice though to drop back to the exact same depth that your marking fish though. Most cases we drop to the bottom and come up best we can estimate where the fish are.
    "DON'T BELIEVE ANYTHING YOU READ OR HEAR AND ONLY HALF OF WHAT YOU SEE" - BEN FRANKLIN




    Endless Summer
    1967 50c 12/71n DDA 525hp
    ex Miss Betsy
    owners:
    Howard P. Miller 1967-1974
    Richard F Hull 1974-1976
    Robert J. & R.Scott Smith 1976-present

  10. #30

    Re: Mystery Box in Engine Room

    Ran into what the high low switches are for, 24 volts low or 32 volts high.

    https://www.ebay.com/itm/STAHLIN-120...cAAOSwB05d0d-h
    CRICKET
    1966 HAT50C101
    Purchased 1985 12v71Ns
    Repowered 1989 with 8v92TI
    Repowered 2001 with 3406E

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