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Home Forums Who's done the SE/30 capacitor replacement? — #6 Who's done the SE/30 capacitor replacement? — #6
Post #6 by wally
Source ForumWho's done the SE/30 capacitor replacement? — #6
CategoryTroubleshooting
Post DateFri, 15 Jun 2007 - 06:36
Original URLhttps://68kmla.org/bb/threads/whos-done-the-se-30-capacitor-replacement.8731/
Post
I've done four, two with aluminum surface mounts as a soldering experiment and two with solid tantalum radial leaded caps winged out as TylerEss suggests. Solid tantalums do not have liquid to leak, however they can fail by shorting. I do not expect to have to do another replacement of the tantalums in 15 years, but I might have to go looking for a failed cap and unsolder it to replace it.

The solid tantalum SMT chip caps commonly available have wide end connections that will not be strictly compatible with the close adjacent signal traces around most of the SE/30 existing caps. I prefer not to depend on the dryfilm resist to prevent shorts. The layout assumes a cap with narrow connections. I'm not against tantalum chip caps, theoretically they will filter some noise slightly better with less lead length. It's just that I have yet to see one that will fit the SE/30 layout, and I too like ease of future rework even if unlikely. So I'll stand with the TylerEss recommendations.

mp.ls