What capacitors should I buy?

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  • RetroComputingGrotto
    Opinions/Advice on Do/Should I replace ALL Electrolytic Capacitors on old equipment?
    by RetroComputingGrotto
    I've just been repairing some (very) old speakers with a loud hum that occurred as soon as you powered them on regardless if any actual audio is played through them. I work in a School so it's 99% likey that the Teachers have hardly ever turned the power off on them for well over 10+ years.



    As you can see the top large capacitor on the right has a bulge on the top so defincately needs replacing. As the one next to it is exactly the same capacity and voltage I planned to replace them both.


    What is your advice/opinion on whether or not on old(er)...
    04-03-2024, 08:30 AM
  • momaka
    Seasonic B12 BC-550 – barely 2 years old and with BAD CAPS already!
    by momaka
    I know I've been a little scarce lately (like the last 2-3 years), but I'm still here and still doing my thing with fixing PSUs.

    For today's considerations, I have a Seasonic B12 BC-550 [A551bcafh] 550 Watt ATX power supply for you (click on links for full size images).

    https://www.badcaps.net/filedata/fetch?id=3591771


    https://www.badcaps.net/filedata/fetch?id=3591772

    It's a modern ATX unit with fixed (non-modular) cables and an 80-plus bronze certificate. Here's the label:

    https://www.badcaps.net/filedata/fetch?id=359177...
    03-12-2025, 03:42 PM
  • alfredo2j90
    Old electrolytic capacitors
    by alfredo2j90
    So as most of us know, old unused electrolytic capacitors are unrealiable due drying out and breakdown of the oxide layer.

    I have a few questions regarding these issues.

    1. Does using an electrolytic cap stop it from drying out or is it natural process that happens regardless?

    2. With the breakdown of the oxide layer the ESR will increase as well as DC leakage. Say the cap has remained unused on a motherboard, psu or games console for many years, if the cap does not physically pop when power is applied what other damage could occur to the system if it was...
    10-10-2021, 04:43 AM
  • qwerty99
    Xbox 1.6 Motherboards and Polymer Capacitors
    by qwerty99
    Hello!

    I need to change the capacitors on my three original Xboxes.

    Two of them are 1.6B revisions and have Hynix RAM, and the other one is a 1.6 with Samsung RAM.

    The 1.6 has the infamous Nichicon HM capacitors around the CPU, which have all bulged and started to leak. This Xbox no longer powers on.

    The 1.6B revisions have Rubycon MBZ capacitors that all look fine, but I’ll change them in due course. Both of these work fine.

    I’ve seen some excellent threads on the forum about replacing/upgrading capacitors, but I can’t...
    06-26-2022, 12:53 AM
  • slybunda
    AA and AAA battery charger capacitors?
    by slybunda
    hey all, iv got my favourite battery charger here which iv had for many years probably 15 years now or maybe even more. it still works good but thought id open it up to clean the dust out of it, lots of dust inside but now its clean and noticed 4 capacitors inside it and wondered if i should replace them.
    it has inside:
    2 x 47uf 16v caps 105c branded as Su'scon (lol sounds sus to me)
    2 x 470uf 16v LZ105c branded as G.Luxon

    not heard of these brands are they any good?

    iv attached photos of the charger and the board inside for an idea on the type of...
    12-24-2023, 04:41 AM
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