Rebuilding tab mount electrolytics.
charles w. morehouse
cwmorehouse at WORLDNET.ATT.NET
Fri Aug 4 23:04:01 EDT 2000
So many have asked that I will post to the reflectors also.
> Hope you find this useful. It works for me.
> > So the tab mount electrolytic is getting tired in your beloved BA.
> > > You can always hang axial caps under the chassis but being a purist
> > > wishing to keep things original, I have a method to rebuild them.
> > > 0...Carefully remove the defective can and the mounting wafer.
> > > 0...Use a Dremmel tool with the cutting disk installed and carefully cut
> > > off the base of the can just above the hump. A hack saw can be
> > > use but not as neat.
> > > 0...Remove the contents and clean up the mess. Polish the can if
> > > you wish. Cut off the aluminum strips as you can't solder to
> > > them.
> > > 0...Drill small holes next to the lugs and a ground tab for the new
> > > cap leads.
> > > 0...Order NEW caps from Mouser or others at same rating as old. The
> > > new ones are much smaller these days and will usually fit. I use
> > > radials as they are easier to wire up.
> > > 0...Mount the new caps on the base and solder leads to lugs. Use
> > > some silicon sealant to hold them together. Don't pot them as
> > > they could explode.
> > > 0...Put can together using a bead of JB Weld around the base. A
> > > little blob of silicone inside will keep them from bouncing
> > > around.
> > > 0...Reinstall cap.
> > > WALA you now have an original new electrolytic. Please print this for
> > > future use and pass it around. Happy electrolytics to all.
> > > Wayne the restorer;
> > > W4GBW
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