Re: free play coin up circuit.

Kevin,
I designed a 555 timer circuit a couple of months ago:
http://pinball-mods.com/blogs/?p=155
I used it on the Captain’s chair for Texas Pinball Fest this March.

It’s open source. I imagine it could be adapted to credit two players. In “volume” the components should be cheaper.
John

From: Kevin Moore
Sent: Saturday, May 26, 2012 8:46 AM
To: vectorlist@vectorlist.org
Subject: Re: VECTOR: free play coin up circuit.
Thanks for the link but id rather not spend the amount of money it would take to get 10 of those. Id rather build something.

Kevin

On May 26, 2012 8:31 AM, "Mark Jenison" <eliminator4player@gmail.com> wrote:

  http://www.onecircuit.com/node/41

  There are also people that provide rom hacks for those games that don't have freeplay.

  Also, some games don't even have start buttons (pole position, eliminator 4player), so either a romhack or separate physical switch is needed.

  On May 26, 2012 7:20 AM, "Kevin Moore" <talon.k@gmail.com> wrote:

    Sorry for those on both lists if you get this twice.

    I'm wondering if anyone has built a coin up circuit for games that don't have free play.

    So when P1 is pressed it adds a coin and starts a game.
    When P2 is press it adds two coins and starts a game.

    I'm not much of a designer of circuits, and I figure there is probably some timing that needs to be worked out between coin pulses and 1up.

    Thanks,

    Kevin

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Received on Sat May 26 15:53:28 2012