Power Supply Voltage

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  • nj-boatbuilder57


    Replies: 286
    Topics: 41
    #83617

    Well, there’s your answer!


    PugetSoundBoater


    Replies: 900
    Topics: 105
    #83620

    Anyone else have a Merc O Tronic 98? What do they use for a power supply?

    "Some people want to know how a watch works, others just want to know what time it is"
    Robbie Robertson


    Mumbles


    Replies: 5764
    Topics: 298
    #83624

    So this one, rated at 2.93 amps, wouldn’t be a good choice for a 98 then?

    https://www.ebay.ca/itm/GS25A07-P1J-Mea … Sw8D9bpiXl

    mercuryman: How often would the rheostat need to be cranked right up and draw 6 amps?


    mercuryman


    Replies: 467
    Topics: 167
    #83628

    When you test a coil are suppose to be tested for a short period at full power. So every coil test I go full for about 5 seconds.


    outbdnut2

    US Member - 1 Year (includes $3 online payment fee)
    Replies: 1705
    Topics: 91
    #83629

    CAUTION!……A rheostat cranked to max current (minimum resisatance) is same as a direct short on the battery. Leave it that way for too many seconds and the battery will self-destruct. Watch the wattage rating on the rheostat too, for example, If you have the rheostat set to draw 3 Amps at 7.2 volts, that is 21.6 Watts – the rheostat will get hot in a hurry – it is rated to dissipate that wattage? some are, some aren’t. With it cranked up to a dead short, all that heat is happening inside the battery – bad news.

    I may have misunderstood – I assumed you were putting a rheostat directly on the battery with a current meter, and that’s all – if the rheostat you are talking about is in the Merc test instrument, disregard what I just said.
    Dave


    dave-bernard

    US Member - 1 Year (includes $3 online payment fee)
    Replies: 2014
    Topics: 30
    #83631

    Read the manual. Don’t run the test more than a few seconds…… just enough to get a reading with spark. longer will destroy the coil also. I use the Radio control Battery and charger last a long time between charges. would not go any other way.


    alieleite


    Replies: 1
    Topics: 0
    #83812

    Hello Mumbles…I also have a observation here. The degree to which the advertised loaded voltage goes up during a no-load voltage is called regulation, and depending on the design of the power supply can vary from perfect regulation where no-load voltage equal to loaded voltage to absolutely dismal regulation where the NLV skyrockets.

    pcb assembly process


    nj-boatbuilder57


    Replies: 286
    Topics: 41
    #83813

    Wow. Just…wow.

    So you’re very first post here is to plagiarize what I wrote in post #2??? That’s really, really weird.


    The Boat House


    Replies: 4550
    Topics: 111
    #83814

    He may be agreeing with you and supporting you in your opinion.
    Being new he may just be looking to participate.


    2fast4me


    Replies: 276
    Topics: 21
    #83816

    Welcome aboard AlieLeite! You are welcome here from southwestern Wisconsin.

    2Fast4Me

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