Champ transformer

[Rafael Puyol]

Hi:
I have the valves to build a champ (AA764)but I cant get the output transformer so Ill pay A guy to build it for me. He told me itll will cost around US$15. Tha data I have is that primary is 7000ohms and sec 4ohm but he told me there was some info missing, he told me somthing about wattage?
What wattage should I tell him I need? 8W?

Furtehrmore I have never played with an amp like this is it similar to the 5E3?

Cheers
Rafa

[stokes]

8-12 watts would be okay.It is not like a 5E3.it is a 5-6 watt single ended output,the 5E3 is a 15watt push-pull output.two totally different preamps as well.