Heater capacity on 6.3 v Secondary

[Bassman]

Thanks Kevin. All great advice.

I wasn't looking forward to adding another transformer with the weight, all the fuses etc.

I should mention that living in England so I'm actually using the Hammond 378CX transformer at 50 Hz.
Does that make any difference to the available current rating?
I know Hammond usually varies the design slightly on their multiple primary transformers to compensate for the mains frequency difference, is that the case here?

I remembered after I posted that you had written previously on the merits of 12V heater voltage, when available. Good tip on the tube socket wiring.

I thought the heater elevation in the circuit was excellent.

I'll handle the cooling with a 120/240 VAC case fan. Sort of like what Pete Traynor did.

Thanks!