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[EngelS]

I've got my hand on a couple of very BIG capacitors. Should I get rid of them or should I use them in an oversized power supply?

There are basically two types of caps: one is Dielektrol 10uF/450V, 15uF/450V and 96uF/450V that look like this -

96uF is simply huge, heavy and terrifying.

And another is Mallory 2000uF/450V
looks like those -


2000uF? What for?

[PRR]

> Dielektrol 10uF/450V, 15uF/450V and 96uF/450V

These are "oil" caps, not electrolytic. Functionally, they are like the 0.05uFd 450V caps you use for grid coupling, except bigger, and instead of a plastic film insulator they use porous paper soaked in special oil. They may last forever. They may leak carcinogenic oil. What is the date-code? Do they say "motor" on them?

> Mallory 2000uF/450V ... 2000uF? What for?

Industrial systems. Super-clean/stable hi-fi: I used 470uFd 450V in a recent one-6L6 hi-fi amp. I don't think they are suited for guitar amps... 20uFd-200uFd are more common values in that field.

[EngelS]

Many thanks. You're the only person on the forum answering my posts!
I'll try to make a 8W IC-based amp with a couple of those monsters just for fun and will report how it turns out.

[EngelS]

I've already made one 18W with 2000uF/450V mallory and one small 1/2 W amp with space charge tubes and a 60000uF/50V filtering can. It works and looks awesome (if you're after cheesy overkill styling)! Pictures coming up next.

[Tweeker]

Some gigantohumongous industrial capacitors can suffer from high ESL.

If shopping new, look to inverter or SMPS grade types if possible. For example Panasonic TS-ED series is available in sizes to 450V 470uF- $9.34 @ Digikey. ESR is quoted at .282 @ 120hz and .127 @ 20khz.

GE Dielektrol is non PCB. I cant comment further as image is missing.
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