72 ohm coax and connector used in UHF converter

[Chad Hauris]

You can use heat shrink tubing to repair old brittle wires from power transformers...if it looks really bad you may want to take the covers off the trans and make sure the tubing runs over the wire all the way to the core, but most times if you can get the tubing just up in side the metal opening of the trans where the wires come out this will be OK.