On the primary side it has the Tweed/Full power taps.
The secondary is 460 Volts to the plates. 6.3V to the tube heaters, an unused 5V for a tube rectifier, 12V for the footswitch and 68 Volts for the bias. Part # 561140, also used on the Heartbreaker. I dont get what you mean by current? It takes 117V AC and transforms it to 350V/ 350V, combines them and then gets rectified to DC. It gets reduced and filtered to 460V DC then off to do its job getting filtered more, reduced again to feed preamp and power amp plates and so on. And dont forget the choke.
I meant how much do the tranny have to deliver in VA..
I have a 120V Mark IV model, and i live in Norway..
The transformer costs almost 700USD here in Norway so i thought i maybe buy a un-original transformer..
But i wont since it's a very special transformer..