Most radios that I have encountered, have been worked on by other people, and there is no guarantee that they connected everything correctly. In fact, it is often safest to assume that they did not connect everything correctly. So no matter how meticulous, or precise you were in replacing things, it is all for naught if someone got in and wired something wrong before you got the radio.
As for the value diffence on the cap, you are close enough.
You might want to check for your radio in the "Riders" section of this site. However, if the radio is newer than 1950, chances are that it is not here. In which case you need to refer to a general AA5 chasis (such as here: http://antiqueradios.com/chrs/journal/aa5.html and should you have the miniature tubes, their corresponding octal counterparts are wired pretty much the same.) and see that your heaters and plate connections are correct, as well as in the correct order.
: I have a small Westinghouse bakalite five tuber - AC/DC set. It was humming badly so I changed the electoletics and a .025 uf capacitor. (All I had was a .033 uf but I don't think that is causing the problem) Here is the AC/DC problem - with the plug in one way and the set on, it results in no AC line voltage on the chassis, BUT everyone sounds like Donald Duck. However, if I reverse the polarity on the plug the AC line voltage is of course on the chassis and everyone returns to apeaking normally. If I get this solved I will put a polarized plug on it, but I'm kind of stumped. Any suggestions?