Amiga 500 PSU

[crosswinds]

Hello!

So i am replacing all the caps in an old Amiga 500 PSU.

Now, im not quite sure about the main 400v 47uF cap.

The one my supplier had that was exact in the values, and closest in dimension is a Panasonic EEUEE2G470S
Now, this one have very thin legs, and the original have quite "beefy" Please see this image:

https://ibb.co/cfB9Pb

Can i still use it, you think?

[diif]

Re: Amiga 500 PSU

Yes.

[stj]

Re: Amiga 500 PSU

the original is not "radial", it's "10mm snap-in" type.

[crosswinds]

Re: Amiga 500 PSU

Yes.

Great! Thanks.

the original is not "radial", it's "10mm snap-in" type.

Thank you! No wonder why I didn't find the right “form factor” hehe

[Behemot]

Re: Amiga 500 PSU

You sure it's bad? Marcon made good caps AFAIK, although after so many years they could fail, sure. Still, input caps with ordinary PFC-less circuits usually last long. You can use pretty much anything if it fits physically, it just filters the rectified grid voltage.

[crosswinds]

Re: Amiga 500 PSU

You sure it's bad? Marcon made good caps AFAIK, although after so many years they could fail, sure. Still, input caps with ordinary PFC-less circuits usually last long. You can use pretty much anything if it fits physically, it just filters the rectified grid voltage.

Actually, the PSU is fully functional.
However I plan to use it quite a bit more now so this is a precautionary measure

All the caps actually read good ESR so that's quite surprising after all these years.

But I hope this will prolong the life of the psu

[stj]

Re: Amiga 500 PSU

the usual problem in amiga psu's is cracked soldering to the parts on the heatsink.

[kc8adu]

Re: Amiga 500 PSU

yes.
but the caps are very old now.
i would replace them while i was in there.
primary use whatever.
fc on secondary.

the usual problem in amiga psu's is cracked soldering to the parts on the heatsink.

[kaboom]

Re: Amiga 500 PSU

don't forget the "exploding rifa" across-the-line cap!