[Radioroslyn]

Ok hear we go. Draw a diagram of the bottom of the osc coil so once get the coil out you will be able to reconnect it properly.
Unsolder the coil connections
Unscrew the screw holding the coil bracket.
Remove the oscillator coil.
TA DA!!
Now what you are looking at is a bakelite tube with 2 coils wound on it.
The one we are going to be rewinding is the small coil at the bottom of tube (known is a coil form)
Careful inspect the small leads of that bottom coil. Very Important note the direction that is wound.
Break the bottom connection of that coil.
Carefully unwind it from the form counting the turns. The wire that you are removing will fall apart in places as it is rotten.
Under  that winding there is a piece celluloid (1930's plastic) Remove it and disguard.
"RR speaking here"" Take the form and bake it in a toaster oven @ 150 deg for 20min. Don't bake over 200 deg.
Replace the celluloid with a thin strip of masking tape.
Now it's time to rewind. You will need to get some small gauge magnet wire. The original is 38ga but size isn't very critical.  If you can find 32ga or smaller it will be fine.
Remember you were counting the turns you removed? Well you need wind them back on with your new magnet wire.
Scrape the coating off of the end of the wire and solder it to the lug on the coil form.
Best I remember it's about 22 turns.
Wind them nice and neat side by side. You MUST wind it in the same direction as the original.
When you finish winding it clean the wire and solder the the other lug.
Spray the new winding with some clear lacquer.
Put it back in the chassis. Wire it back up and your good to go!!
Terry