I have a Raleigh technium , recently broke at the rear dropout. Angelo had a post w a picture of a broken rear dropout and commented, that this failure on a steel frame was totally repairable, btw...Would really like to fix mine!
Apparently Raleight Techniums are weird combination of aluminum and steel. Rear triangle of Techniums are steel (chro-moly, I'd wager) so they should be repairable.
Looking at the pictures of Technium rear dropouts, they seem to be cast pieces that are brazed to the rear triangle. If the joint between the dropout and seat/chain stay is broken, then the fix is matter of re-brazing the dropout. If the dropout itself has cracked, then it needs to be welded together.
In either case, you need to take the frame to shop that can handle frame repairs. To do it yourself, you'd need a workshop and either TIG welding machine or oxy-acetylene torch and brazing materials. Not a job to the faint hearted.
Full disclosure: I'm a amateur frame maker. I've made couple of lugged frames and fixed a broken frame by welding it, so I have some idea what I'm talking about.