Hello. The first thing is to introduce myself and say thank you. I started with the original version and researching I have come here and I have to say that I have seen beautiful versions derived from v1. 0. I would like to keep the original project (the TL081, the toroidal transformer of 24v. . . etc), but I've already seen so many projects that I'm a mess. What I'm looking for is simplicity and I don't mind staying at 27 or 28.maximum volts. . . but toroids are not cheap here and I want to take advantage of the one I bought from 24 which one do you advise me for that 24AC transformer?