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I have had success using film caps in series. These are often selected due to the high pulse voltages, though the DC across them is less than 400 VDC.
For instance, a vertical feedback timing circuit has a wax paper capacitor rated .0056 @ 1.2 kV. This value .0056 uf or (562), is commonly rated at 630 volts.
If using two .012 uf (123) in series, that is .006 uf and within 10% of original, but voltage divides across those, such that each sees half of the total.
The best selection of higher voltage caps I have seen, without minimum quantity, is at Justradios.com
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"When resistors increase in value, they're worthless"
-Dave G
Last edited by DavGoodlin; 06-08-2022 at 01:00 PM.
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