[Amps] Converting a 76A to a pair of 3CX800's

[Roger]

As I mentioned in an earlier post, I need a 3CX400. If I don't find one 
I'm considering  converting to a pair of 3CX-800's which I already 
have.  Although I'd have to replace the transformer as the one in there 
is a bit on the light side and there is little room for a filament 
transformer. That's notably less than the cost of a new tube. The 
conversion looks straight forward and quite simple as the new 
transformer has the proper filament voltage (IOW it's a drop in 
replacement with the filament winding for the 3CX-800's) ...BUT, when I 
look at the transformer with a 1900 VAC RMS winding into a full wave 
bridge and then at that stack of 6 450 V caps it looks a bit marginal.  
IOW 1900 X 1.414 - 2686 volts out of the bridge while 6 X 450 = 2700 V 
for the capacitor ratings. If I figured that correctly that's a whole 14 
volts to spare if all the caps are at least 450 volts. 
Any thoughts or suggestions?

73

Roger (K8RI)