(Topic ID: 217190)

US power grid change 60 hertz immediate correction eliminated

By alimerick

5 years ago


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    #6 5 years ago

    I'm wondering how tight Stern's firmware is for exporting games. Ref their Service Bulletin 170. If the frequency of the zero-cross does not equal 60 on domestic games, it will display an error stating that the game can't be used 'in this country'.
    I doubt the frequency will be off enough to throw the error, but I would be curious if this ever happened.

    #10 5 years ago
    Quoted from KenLayton:

    What about devices which use sync motors? Film-to-video telecine transfer machines do. Without an exact 60 Hz frequency you'd get "roll bars" or flicker in the picture.

    Not only that, but digital cameras. There's a reason some of the upper-rage ones let you specify if your 50Hz or 60Hz.

    ...However, with such a slight deviation possible, I don't think it would be that noticeable.

    It depends on whether this deviation hits all at once (10 consecutive seconds) over a year, or spread out (1000 10ms blips) over the course of the year?

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