I’m building a 2204 circuit expecting a lower output power than 50 watts. I’m thinking it’s probably going to be around 40 watts. Everything inside the chassis will be stock value. The transformers are the difference. I wound a power transformer from EI 125 size laminations M6. It’s 315-0-315 from 30 gauge wire with 84 ohms DCR on the secondary. I’m hoping it’ll hold 400 volts at idle. The 6.3 is 14 gauge wire and the 120 volt is 22 gauge. The output transformer is wound to 5.7k on EI112 M19 with 30 gauge primary and 22 gauge secondary. It’s the 784-139 interleaving pattern just with more primary turns. The choke is 10 Henry with 498 ohms to help pull down the screens a little to balance the higher impedance of the output transformer. I’ve never played a 2204 so I’m interested to see what it sounds like.