nvm
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Hello Again, so i'm bringing back this Zumax PSU from the gutless thread and going to be doing some modifications, and also putting it into a PC i'm going to throw together out of spare parts to see how long it lasts.
So the first thing i did was fill in the missing filtering, by replacing the cheap common mode choke with a real one and adding a 470nf X2 capacitor in the open capacitor spot, i then replaced the fake Y-class capacitors with real ones, i also swapped out the mismatched primary caps with a pair of Aishi WK 470uf 200v caps, both of which test around 520uf. I also swapped... -
The attached capacitors are used in the output filters of class D amplifiers and hold up well but when they fail, replacements are difficult to find. I've tried the various options on eBay and crossover caps and none survived. Mouser, Digi-key... don't stock many bi-polar electrolytic caps. The only thing that I found survived (never a failure) was the Mouser E2106 (part number 667-ECQ-E2106JF) and the same from Digi-key. They look different but survive. Does anyone know a readily available drop-in replacement electrolytic? The dimensions are approximately 16mm x 25mm.... -
Hi,
Back after a long hiatus with some old power supplies that need repairing. I've recently picked up a couple of 386SX systems, two 486DX systems, a SiliconGraphics Indy and an iMac G3 that either have verified leaking capacitors in their power supplies, or are likely to in the near future. For the sake of simplicity, instead of tackling all at once, I'm starting with the 386's and one of the 486's.
The 386's power supplies are Seasonic SS4040A's, with caps that are visibly leaking, and 9 replacement caps per unit are required. Most appear to be from the Rubycon... -
Back in 2020 i bought a (2nd hand) compact ATX psu to replace my current one. My PC case only fits very short ATX power supplies so i didn't really have the choice of buying a decent 80Plus unit. The current unit is a modded YoungYear unit that i made a thread about a while ago:
A "nice" YoungYear unit? - Badcaps
The "new" unit is a KDM-M6480 480W psu, the 480W number is a typical KDM bullshit claim of course, but the 24A rating on the 12V rail seemed reasonable and the "Active PFC" claim gave me a bit of hope that this was going to be decent-ish.... -
hi
motherboard toshiba C50 PT10F
i found 2 bad 470uf tantalum in cpu sircuit making short .
but i only have 380uf tantalum can i replace them with electrolytic caps .