Smoothing caps?

Vox and Hiwatt Discussion

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ThreeChordWonder
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Joined: Sun Jun 18, 2023 12:01 am

Smoothing caps?

Post by ThreeChordWonder »

Talking about the big dielectric can type ones.

Is there a brand or spec anyone would recommend, at a reasonable cost, as an upgrade to the ones Mojotone supplies?

Will changing them actually make any difference?

The spec as supplied with the kit is:

- 1 x 32/32 uF dual
- 1 x 50/50 uF dual
- 3 x 220 uF single

All 500 volt.

Also, if I can't find 220 uF, would 250 uF be acceptable substitutions? Should I go up.or down on the uFs , or stick strictly to the specified values?

Thanks in advance.
sluckey
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Re: Smoothing caps?

Post by sluckey »

Mojo sells good stuff. What do you think is inferior with their electrolytics?
ThreeChordWonder
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Re: Smoothing caps?

Post by ThreeChordWonder »

Nothing really, just wondered if there are "better".
sluckey
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Re: Smoothing caps?

Post by sluckey »

ThreeChordWonder wrote: Tue Oct 24, 2023 3:51 pm Nothing really, just wondered if there are "better".
You can certainly spend more money on filter caps. Are they worth it in a guitar amp? Very subjective.
pdf64
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Re: Smoothing caps?

Post by pdf64 »

Electrolytic caps are wide tolerance type components.
In the old days, the tolerance for higher voltage types was as loose as +100% to -50%.
These days +/-20% is typical
Hence for these purposes, 220 = 250.
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ViperDoc
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Re: Smoothing caps?

Post by ViperDoc »

Do you need the can type? F&T makes axial caps in all kinds of values, are super reliable, and cheaper than Spragues. 220uF easy. I get mine from Antique Electronic Supply.
Just plug it in, man.
Roe
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Re: Smoothing caps?

Post by Roe »

what kind of amp is this?
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Express, Comet 60, Jtm45, jtm50, jmp50, 6g6b, vibroverb, champster, alessandro rottweiler
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JD0x0
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Re: Smoothing caps?

Post by JD0x0 »

The 'better' caps are all radials in place of the overpriced, underperforming axials available.
It's true i've lost my marbles and i cant remember where i put them
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