oem converter (hot tub) for radio died, can't find same and nor suitable replacement. replacing 240v 1a to 12vdc 4.5a. 50-63hz 48w. Help!

 

Transformer died?You are looking for replacement transformer?

 

Transformer died?You are looking for replacement transformer?

YES, must be 3 prong grounded US, Have to ground for hot tub. Can only find 2 prong plug

 

Then this:
http://hr.mouser.com/ProductDetail/Triad-Magnetics/TCT50-03E07K/?qs=sGAEpiMZZMuNt0P7FPKugstlsyIY8zt46ZvlevSACdE=

Jameco:http://www.jameco.com/webapp/wcs/stores/servlet/Product_10001_10001_221356_-1