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  • Tech: Gottlieb System 80B sound board.

    From gtriley@yahoo.com@gtriley@yahoo.com to rec.games.pinball on Tuesday, December 06, 2022 08:01:45
    From Newsgroup: rec.games.pinball

    I have been working on these for years, trying to figure out what kills the background music. As it stands G5 7408 IC is the bad boy more times than not. I hope this helps. George Riley
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  • From John Robertson@jrr@flippers.com to rec.games.pinball on Tuesday, December 06, 2022 10:04:46
    From Newsgroup: rec.games.pinball

    On 2022/12/06 8:01 a.m., gtriley@yahoo.com wrote:
    I have been working on these for years, trying to figure out what kills the background music. As it stands G5 7408 IC is the bad boy more times than not. I hope this helps. George Riley

    My experience too.

    Gottlieb didn't protect the chip inputs, so I suspect they die because
    someone plugged or unplugged a board with the power on...

    John :-#)#
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