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Search: Posts Made By: PeteS in CA
Forum: General Capacitor Questions & Issues 05-22-2019, 11:55 AM
Replies: 29
Views: 2,485
Posted By PeteS in CA
Re: Macintosh polymer recap & ESR considerations

I picked a random value/voltage to compare the various series, not for any other reason. Since I'm not being understood I'll drop out of the conversation rather than cause further confusion.
Forum: General Capacitor Questions & Issues 05-20-2019, 01:09 PM
Replies: 29
Views: 2,485
Posted By PeteS in CA
Re: Macintosh polymer recap & ESR considerations

Looks like my memory was largely incorrect regarding the PM, PJ, and PW series:

PS Series, 2200uF, 6.3V, 12.5x20, .075 ohm impedance, 1250 mA ripple current

PM Series, 2200uF, 6.3V, 10x31.5,...
Forum: General Capacitor Questions & Issues 05-17-2019, 12:13 PM
Replies: 29
Views: 2,485
Posted By PeteS in CA
Re: Macintosh polymer recap & ESR considerations

The power supply in your pictures appears to have bee built in 1988, based on the date code marked on the Fujitsu MB3579, which looks like a PWM similar to (or a clone of) a TL494.

That was right...
Forum: General Capacitor Questions & Issues 05-16-2019, 02:13 PM
Replies: 29
Views: 2,485
Posted By PeteS in CA
Re: Macintosh polymer recap & ESR considerations

Sprague's bits and pieces got bought by multiple companies. Nippon Chemi-Con bought some of Sprague, too.

That said, Sprague 672D series was equivalent to NCC's RX series and, I think, Nichicon's...
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