You need to lay your hands on a copy of AUDIO ELECTRONICS (formerly THE AUDIO AMATEUR) Peterborough, N.H. (If you are a US resident) at (603)924-9464. They have been publishing amp projects since the 70's and also have ads for plans books, parts houses, etc. Maybe they can tell you if some retailer carries it near you. Also check the electronics hobby mags from time to time, on the newsstands.
