(Topic ID: 303502)
Williamstown, ON
If I'm not mistaken, the correct replacement for the cap on the transformer board should be 6800uf to 12,000uf and at least 25V.
Unless you know WHY that substitute was suggested or you have faith the person knows what they are talking about (which you don't, otherwise you wouldn't be here) stick to what's suggested by the manufacturer.
If this is the one you're talking about I trust the advice at Pinwiki: https://www.pinwiki.com/wiki/index.php?title=Gottlieb_System_80#Replacing_the_Orange_Filtering_Capacitor
I had asked a couple of years ago, a very reputable guy on this forum suggested the 15000uf capacitor. I guess I wanted to know if that would be the one to get if I wanted to buy a 15000uf capacitor. I think he suggested this one cause most people that rebuild williams high voltage section would have this on hand.
I know for a system 80 they call for 6800 to 12000, but the 80b manual lists it at 10000uf. I am not sure what would happen to have a capacitor that is 5000uf over what is supposed to be there.
The 15,000 uF capacitor you have selected would probably work fine. But if you are going to have to buy a replacement, why not buy what the manufacturer specifies?
This capacitor is not in the high voltage section. It is low voltage. You should be fine with 6,800-12,000 uF, as long as the voltage rating is 25v or higher.
To answer your question, in this particular circuit, nothing detrimental should happen if you use a 15,000 capacitor, but my recommendation would be to use 6,800-12,000. Besides, the lower capacitance would cost less.
Anchorage, AK
Quoted from JethroP:The 15,000 uF capacitor you have selected would probably work fine. But if you are going to have to buy a replacement, why not buy what the manufacturer specifies?
This capacitor is not in the high voltage section. It is low voltage. You should be fine with 6,800-12,000 uF, as long as the voltage rating is 25v or higher.
To answer your question, in this particular circuit, nothing detrimental should happen if you use a 15,000 capacitor, but my recommendation would be to use 6,800-12,000. Besides, the lower capacitance would cost less.
I have used 12,000 mfd caps in System 80 games before without issue as replacement for 6800 mfd.
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