I did an RA-103 "Chatham", in superb cosmetic condition, a few months back.
You'll have little problem with it, is my guess. It's a LOT less complicated than the 630TS.
Mine works great. A little quirky with Sound synching up to Video when first switched on, but, it settles down when warmed up.
My RA-105B "Sussex" is my most trouble-free vintage TV. I switch it on, and Picture and Sound are Rock-On. No tweaking needed, ever.
LJB
