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In Reply to: RE: My education continues posted by Cousin Billy on March 13, 2014 at 17:23:42
Right now, don't you have three (3) 100uF caps in parallel on each phase of the bipolar HV supply? Any film caps you wire up in parallel with those electrolytics will add additional capacitance, but because the film caps are likely to be small in value compared to 300uF (the net of three 100uF caps in parallel), the film caps won't add significantly. For example, if you use a 30uF film cap, which would have a hope of being audible, the final total capacitance will be 330uF. Some would also bypass the main film bypass capacitor with increasingly smaller value film caps, down to 0.01uF. Some would not.
Follow Ups:
Lew, if you look carefully at my first picture, you will see there are actually 6 (100uF) caps per phase. 12 in total per amp.
On the right hand side of the HV caps there is a strip of wire which connects all 6 leads together (not noticeable in my picture).
On the left hand side you'll see that 2 (100uF) caps are wired together, and these 'sets' go off in different directions. So, 3 sets of 100uF per phase.
I would install 6 film caps in total per amp. One for each 'pair' of 100uF caps.
I can't see that what you say is true, but you know better than I.
There is no need or reason to bypass pairs of 100uF lytics separately. Any bypass capacitor that you wire in parallel with any electrolytic will be "seen" also by all other electrolytics in the same six-capacitor bundle. (Six per phase, I now presume.)
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