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Need help with T2 solenoid driver circuit!
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Beley:

--- Quote ---I could only find a solid-state relay that switched AC current using 5VDC.
--- End quote ---
1UP:
Dammit, I went out and got a 1uF cap when I already had a 1000uF!
ErikRuud:
If you are using a solid state relay, you shouldn't need the diode.  There is no coil in a solid state relay, so there would be no back EMF.
Elkor:
While I have done some extensive (if simplistic) electronics in the past, and understand what you want to do, wouldn't it just be a lot more simple to have the relay fire when the trigger is depressed and not worry about the ipac led's at all?  then it could be done with a simple relay or even a transistor to fire the solenoid?

Does mame even flash the led's for the gun fire or would there be a source code change as well (I have not looked myself)?

I dunno, just seems easier to make it an independent function (especially as it is specialized equipment (T2 guns) anyway).

-C
Dav:
Looks like you're making good progress :D.  If you need any info from the original coil driver board like schematics or transistor part numbers let me know.  I'm hoping to do another small run of pcbs in ~4-6 weeks if you get something working well I'll run off a few and send you one.

Dave
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