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  •  » FYI Ford, Classic Mustang Tech Discussion
  •  » Ammeter to Voltmeter

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    6/02/2024 9:49 AM  #1

    John Ha
    I FYI 24-7

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    From: Mitchell, SD
    Registered: 4/02/2013
    Posts: 909

    Ammeter to Voltmeter

    I was doing some thinkin' and messin' around and thought I'd share in the Tips and How To's.  It's less a conversion and more an adaptation.  It seems to work though, and might save you a few bucks, depending on your supply of compatible gauges.

    Founding Member of the Perpetually Bewildered Society
     

    6/02/2024 10:08 AM  #2

    Nos681
    Senior 24-7 FYI Addict

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    From: Atlantic Mine, Michigan
    Registered: 7/14/2016
    Posts: 3,322

    Re: Ammeter to Voltmeter

    Could you provide the resistance value of the “new gauge”?

    That may help if a different gauge is used.

    Great use of older gauges.

     

    6/02/2024 10:25 AM  #3

    John Ha
    I FYI 24-7

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    From: Mitchell, SD
    Registered: 4/02/2013
    Posts: 909

    Re: Ammeter to Voltmeter

    Nos681 wrote:

    Could you provide the resistance value of the “new gauge”?

    That may help if a different gauge is used.

    Great use of older gauges.

    The nominal resistance of the Mustang/Ford heated bimetal gauges is about 12.5Ω, so the total resistance of the circuit would be about 100Ω

    Last edited by John Ha (6/03/2024 8:50 AM)

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    6/02/2024 3:08 PM  #4

    6sally6
    Hyper FYIFORD ADDICT

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    From: Surfside Beach,SC
    Registered: 4/02/2013
    Posts: 6,787

    Re: Ammeter to Voltmeter

    John Ha.......you a smart man ! (and that ain't no laughing/Ha matter)
    Maybe I'll get somebody to make me one !!
    THANX FROM EVERYBODY.....
    6sally6

    Get busy Liv'in or get busy Die'n....Host of the 2020 Bash at the Beach/The only Bash that got cancelled  )8
     

    6/02/2024 5:31 PM  #5

    rpm
    Senior 24-7 FYI Addict

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    From: Bakersfield, Ca
    Registered: 9/17/2013
    Posts: 3,619

    Re: Ammeter to Voltmeter

    John Ha wrote:

    I was doing some thinkin' and messin' around and thought I'd share in the Tips and How To's.  It's less a conversion and more an adaptation.  It seems to work though, and might save you a few bucks, depending on your supply of compatible gauges.

     
    With the history of how-to's disappearing, maybe they should be posted here for posterity.

    Bob. 69 Mach 1, 393W, SMOD Toploader, Armstrong  steering, factory AC.
     

    6/03/2024 6:05 AM  #6

    BobE
    Senior 24-7 FYI Addict

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    From: White Plains, NY
    Registered: 4/04/2013
    Posts: 2,598

    Re: Ammeter to Voltmeter

    John Ha - great job, thank you for posting.

    65 Fastback, 351W, 5-speed, 4 wheel discs, 9" rear,  R&C Front End.
     

    6/03/2024 11:32 AM  #7

    John Ha
    I FYI 24-7

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    From: Mitchell, SD
    Registered: 4/02/2013
    Posts: 909

    Re: Ammeter to Voltmeter

    6sally6 wrote:

    John Ha.......you a smart man ! (and that ain't no laughing/Ha matter)
    Maybe I'll get somebody to make me one !!
    THANX FROM EVERYBODY.....
    6sally6

    You're welcome!

    BobE wrote:

    John Ha - great job, thank you for posting.

    Thanks!  Happy to help :-)

    Last edited by John Ha (6/03/2024 11:32 AM)

    Founding Member of the Perpetually Bewildered Society
       •Thread Starter
     

     

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