This is probably familiar to most people who have ever tried to replace an old electrolytic capacitor.
It is very easy to make an adapter, at no cost.
It is enough to cut off the edge of the old electrolyte, approximately 3 millimeters from the edge.
You will get an outer ring that fits perfectly back to where it was, and the bakelite center will serve perfectly to place a modern electrolyte on it.
Here are pictures of how I usually do it:
/g/TekScopes/album?id=294954
