[K7Sparky]

If you have a scrap yard around you have a good place to frequent to find one.  They don't like to bust up the transformer to get the copper around here.  I'm guessing the old burn out ovens are also a thing of the past.

Transformers windings are current limited.  If you find a 440 / 220 to 220 / 110 CPT (Control Power Transformer), hook it 220 to 220 and it is good for 1/2 the KVA rating on 120.  

A transformer doesn't care which side is primary.  You can take 2ea. 120 / 12 and hook them back to back for a 120 / 120.  Lowest current winding is your KVA limit.  Use a fuse - what have you lost if you smoke one anyway.

I also like a GFCI on my test bench feed.  May not help, but gives me a warm fuzzy feeling.

Don't expect your smoke detector to tell you if a transformer is smoking unless it is an opacity type.  Burning insulating varnish does not polarize.