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In Reply to: Question about capacitor ratings for the cognoscenti posted by Lew on October 20, 2020 at 11:31:50:
It was common for the line voltage to be more like 115-117V, not the 120+ that we see now (remember the old days of 110V?...). That little bit of extra voltage might not seem like a lot, but if you're trying to build a 3200V supply, it is.
But 500V would be safer. Usually any cap can survive being at its rated limit, but in practice you want to be more like about 85% of the rating for best life. Not all the ratings are the same; if marked 'WV' that means 'working voltage' and usually a part like that will also have a surge rating. Otherwise the rating should be considered 'do not exceed unless you like really loud sounds'...
If it were me I'd be looking at reducing the AC voltage from the line. That could be done with a bucking transformer which would not be expensive.
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Follow Ups
- When that thing was built - Ralph 13:27:27 10/20/20 (1)
- RE: When that thing was built - Lew 14:32:02 10/20/20 (0)
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