Build Your Own Arcade Controls Forum

Main => Main Forum => Topic started by: koolmoecraig on December 17, 2005, 05:32:17 pm

Title: Power Supply ****HELP NEEDED ****
Post by: koolmoecraig on December 17, 2005, 05:32:17 pm
So I have this power supply for my Q*bert knocker: http://www.radioshack.com/product/index.jsp?productId=2049692&cp=&kw=power+30v&parentPage=search

The problem is that my knocker likes 3 amps. This thing only puts out 1 amp. This makes for a rather weak knock.

Does anyone know where to find a power supply with 3 amps at 30 volts? I've searched high and low with no luck.

Thank you!
Title: Re: Power Supply ****HELP NEEDED ****
Post by: MaximRecoil on December 17, 2005, 06:11:33 pm
http://store.qkits.com/moreinfo.cfm/K7203

Not exactly plug and play...

Is it hard to find original Q-bert power supplies? What about pinball machine power supplies? A lot of those used the same knocker didn't they?
Title: Re: Power Supply ****HELP NEEDED ****
Post by: hnugz on December 17, 2005, 06:39:13 pm
what's a knocker?  (in terms of power supplies)
Title: Re: Power Supply ****HELP NEEDED ****
Post by: SirPeale on December 17, 2005, 06:55:41 pm
what's a knocker?  (in terms of power supplies)

Actually, it's in terms of the original game.

Q-Bert had a knocker in it.  A knocker is a coil that sets off a piston that 'knocks' against a striker.  In Q-Bert it's activated when the little guy falls off the pyramid.  Kind of like he's hitting the bottom of the cab.
Title: Re: Power Supply ****HELP NEEDED ****
Post by: MaximRecoil on December 17, 2005, 06:56:40 pm
what's a knocker?
Title: Re: Power Supply ****HELP NEEDED ****
Post by: koolmoecraig on December 17, 2005, 07:40:34 pm
Now that I think about it. Might it be possible to actually use my original Q*bert power supply that is in the cabinet??

Right now I have all the fuses pulled from the board since it's mame'd. If I replace the fuses and run wires just from the 30v out and mount it just like I mounted the weaker power supply, it should work....shouldn't it? That would be the perfect voltage and amps right?

Am I off or am I not taking something into account here? Maybe the 30v out on the power board isn't constant since it would only trigger when the PCB tells it to. How would I overcome that?

Seems too easy.

Am I on to something here?