Olympia, WA
I'd say to try wiring in a .05 uf or .047 uf @ 50v ceramic disc capacitor across the tilt bob just like Bally did. This should give quick switch closures a longer pulse to the cpu board.
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Quoted from JethroP:Can anyone explain why a capacitor across the bob won’t help?
Could be because Gottlieb uses a different processor chip than other manufacturers.
Also, perhaps we need to try a different type of capacitor: a "non-polarized" electrolytic. Maybe something like any of these values:
1 uf @ 25 volts
2.2 uf @ 25 volts
4.7 uf @ 25 volts
10 uf @ 25 volts
22 uf @ 25 volts
You get the idea. Start with the smallest value first (connected across the plumb bob tilt) and try it. These work in dc circuits and should tretch the pulse of the switch closure.
Quoted from JethroP:I've got some polarized 2.2 uf electrolytics on the shelf. Could I try one of them, connected with polarity in the "correct" direction? If so, which direction?
Yes, if you connect the negative side to the return wire (I think it's Return 0).
1 week later
Quoted from Insane:Probably should get a write up perhaps even with a drawing and have marked as key post. I will be ordering parts with my next order.
Annotated pictures would help.
1 week later
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