These should be simple questions...

[Nick_the_'Nole]

Ya, I know that the tube numbering standard changed in 1934 or so, and I already got that schematic but can't make out most of the numbers and such on it... The 3ma each is what I needed on the 01a's but I have a 12a in the last audio stage in place of the 71a, so I believe the 12a would be significantly lower draw?

Also, how much variation should I reasonably allow in the 22.5 and 67.5v lines? I hear anywhere from 10% to 30% allowable margin in voltage, and while I'd like to get it spot on if I can, if I do end up with some error, how far off is reasonable? I know these things aren't extremely precision, but I'm trying to get a feel for what would work best...

I really need to find a good source for such info, I don't have a book that covers the early tubes and Google doesn't really give me anything except price lists at online stores, even when I use every conceivable variation on the numbers... Any suggestions for a good reference in the future?