whirlwind
Headphoneus Supremus
Got to love the custom amp builds. Your amp will last you a lifetime and you already own gobs of tubes.Yamamoto sockets is a great choice even though it's expensive. However Tomas's suggestion to using Sowter transformers is pretty spot on. I don't even know the brand Sowter then. I only know Lundahl but Lundahl wouldn't do custom transformers unless the order is above 100.
Just happy listening now