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Electrolytic capacitor replacement

I want to swap out a couple of electrolytic caps with higher quality caps, also electrolytic. The ones I am looking at are all physically bigger than the ones I am replacing, and consequently the leads don’t fit the board. The rubicon’s I want to bin are have a diameter of around 3/4’ and the caps I’m considering are between 1’ and 2’. The big issue I have is the lead spacing.

I’m considering using a spacer between the pc board and the cap giving enough room for the leads to bend enough to fit the board. I have space on the board to fit a larger cap, but not enough to mount the caps on their side. The caps new will need to sit “upright”.

Id appreciate it if somebody has figured an eloquent solution for this.

Thanks
pauly
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grannyring's avatar
grannyring
6,479 posts
 
If needing to stick with Electrolytics, then I use these! These may fit….

Mundorf HV Mlytic - use these all the time

Audio Note Kaisei - these will most likely fit.They can get pricy. Very good. 
pauly OP
1,012 posts
 
@grannyring 

Thanks, I’ll look into them. I’ll probably go for one of the three prong MLytics. Given the cost of the kaiseis, I’ll use them on cathode bypass positions only. On a power supply the cost would run up pretty fast. 

Reading between the lines, you really don’t like Solens, do you? 😂🤣
grannyring's avatar
grannyring
6,479 posts
 
Let me clarify something I should have said earlier. The Solen caps, or any film cap, will sound better than 95% of the electrolytics out there in a power supply. I gave you other film choices better than Solen. I thought the Mundorf tube caps were no bigger than Solen? 
If the Solens fit better than the Mundorf Tubecap,  then you can use them. Both the Mundorf MLytic HV and Solen film caps are good choices for your power supply. You can decide based on price and space. If you use the Mundorf  Mlytic HV or HV+, then add a film bypass cap. 
pauly OP
1,012 posts
 
Got you. I am interested in using film for both better sound and reliability. I’m going to try and see if I can squeeze Mundorf Tubecaps in. 
The 30uFs are rectangular and if I can superglue them against the sidewall I’ll get them enough of them in. Maybe. 
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