An RCA Radiola III-A has several fixed capacitors that are in cylinders, 1/2" in diameter and 1-3/8" long. The body of the cylinder is cardboard and the ends have metal caps crimped on.

I'm in need of replacing one of these caps that is shorted. I haven't been able to figure out how to remove the metal end caps without wrecking the cardboard body.

Suggestions?

:An RCA Radiola III-A has several fixed capacitors that are in cylinders, 1/2" in diameter and 1-3/8" long. The body of the cylinder is cardboard and the ends have metal caps crimped on.
:
:I'm in need of replacing one of these caps that is shorted. I haven't been able to figure out how to remove the metal end caps without wrecking the cardboard body.

I would cut one metal end off with a very sharp razor knife, angeling the blade towards and against the metal end. when you get that end off, clean out the tube and recap. If you have done a neat job of removing the end you should be able to glue it back on with epoxy or Gorilla glue and make it almost invisible. You could probably fill any flaws with a wax stick of the proper color. I have never done this but I would try it. BTW, dont send me your cap, I may be too spastic to do it.
Will
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:Suggestions?

Thanks, Will.

What do you think of this idea (which is pretty close to yours): cut the cardboard cylinder in two, in the middle, with a bandsaw or coping saw.

Then, tape together the two halves, and wrap with brown paper to hide the splice.

:Thanks, Will.
:
:What do you think of this idea (which is pretty close to yours): cut the cardboard cylinder in two, in the middle, with a bandsaw or coping saw.
:
:Then, tape together the two halves, and wrap with brown paper to hide the splice.

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I don't have the patience to cut open the old caps. I have downloaded some old labels from the Internet and have also carefully peeled labels off from old caps. I scan the old labels and clean them up using Adobe Elements software. I can then change specs on the labels for anything I happen to need. I print a new label and glue it to a correctly sized cardboard or plastic tube and bury a new cap inside. Not as messy as scooping out the old electrolytics.
Rich
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:Thanks, Will.
:
:What do you think of this idea (which is pretty close to yours): cut the cardboard cylinder in two, in the middle, with a bandsaw or coping saw.
:
:Then, tape together the two halves, and wrap with brown paper to hide the splice.

Sounds like a good plan to me but I think Rich has us bested.

::Thanks, Will.
::
::What do you think of this idea (which is pretty close to yours): cut the cardboard cylinder in two, in the middle, with a bandsaw or coping saw.
::
::Then, tape together the two halves, and wrap with brown paper to hide the splice.
:
:Sounds like a good plan to me but I think Rich has us bested.

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Here is a source for capacitor label scans.

http://www.geocities.com/CapeCanaveral/9178/radios/repair.htm

Rich

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