Of the two "closest" choices that I see listed on Euphonia's site, one is just a tad too "close" for current ratings, 300-0-300V @ 100 mA, and the other one is a serious "overkill", and weighs in around 15 pounds, and is expensive!.
http://euphoniaaudio.netfirms.com/ea/nf ... Path=26_22
Also, two independent 6.3VAC windings, of at least 2.5A each, are needed for the 6B4Gs, and the smaller James power trannie doesn't meet that spec.
This one does, but it's $208 and tips in around 13 pounds, and he has them in stock: (using the 280-0-280 winding)
http://euphoniaaudio.netfirms.com/ea/nf ... ucts_id=62
I am sure that there are others available from the manufacturer in Taiwan, and they will probably create any custom request, but at a fairly "stiff" cost...
The PA-774, with either nickel or brass end bells is decently attractive, and there is plenty of plate current "overhead", and the two independent 6.3VAC filament windings are what's needed.
Just my two cent's worth, I am sure there are other/better ideas out there...
/ed B in NH