[Eliot Ness]

Here are new clickable links:

http://www.nostalgiaair.org/pagesbymodel...007591.pdf

http://www.nostalgiaair.org/pagesbymodel...007675.pdf

If all the caps have been replaced as well as out-of-spec resistors, your voltages are good, and you subbed out all the tubes that only leaves the speaker or output transformer.  Have you ohmed that out yet?

Years ago I was tearing my hair out on a Zenith console that was distorting and the speaker looked perfect.  Just for grins I grabbed another speaker out of a parts set I had and it sounded wonderful.  Since then I found an old speaker substitution box at a radio show, and while I don't use it very often, it was well worth the $10 or $20 I paid for it.

Not sure about subbing those antennas, but they are both listed at 2.5 ohms, although the one on the 115 looks like it has more windings.  You might try various lengths of long wire to see if it makes any difference or experiment making an antenna.