Hi Neil,
Not forgotten about your transformers, but I realized there are no connection details, and I need to measure them to ascertain the primary and secondary connections before sending them to you
.
I’ll take a photo of my Sterns 3-3 but it’s not as nice as the octal based units above.
I suppose you could use a 6V6.
To connect with another thread on the Forum, Gilbert Davey featured the Mullard 3-3 in the Fun With hi-fi book.
PM sent
Regards
Terry.