In one book (name forgotten at the moment) from the -70's he describes his development recipe for Tri-x. Note that today's Tri-x is necessarily not the same. Anyway, here goes: Tri-x @ 200 for 11 mins in Rodinal 1:25. 30sec initial agitation and 10sec in each 1,5 minutes. He might have changed the recipe later on but this is what is written on the book.