Good day AI
I am wondering whether anybody has experience in winding their own transformers and also whether they have used a toroidal as an output transformer for their project. Although I am surprised at the amount of information on the internet we need to ask ourselves what happened to all the vintage gear which was trashed with working transformers. In SA toroidals are just freaking’ expensive and why should a machine wound EI output transformer be out of most of our pocket range, interleave or not.
I have used a mains transformer EI construction 220:9-0-9 with hellish results.