[R-390] 2nd osc again

[dog]

I went through 7 6AK5 tubes today in the 2nd osc. They varied from -2V 
to maybe -4V. Then I tuned T401, things came up a bit. Then I found the 
ant trim didn't peak at 0 any more. Back to the RF alignment. Found a 
few that were off a tiny bit and one that was way off, one of the slugs. 
I ended up going back and forth on the 8MC and 15MC until they didn't 
interact. Then the individual frequencies were off on the 2nd osc. 
Readjusted them. I think I went through the T401, RF alignment and the 
2nd osc xtals about 3 times. The funny thing is most of the 6AK5 tubes 
seem to work fine in the 1st osc, about 10V worth. But the 2nd osc I get 
anywhere from less than 3V at 8MC to nearly 10V at 31MC. The PTO is 
slightly low on the low end, but I'm not messing with that, I haven't 
tried swapping tubes on the PTO yet. Does this sound about normal or do 
some of the 2nd osc crystals get weak as time goes on, especially the 
low freq ones? There doesn't seem to be any balancing of the T401 to 
adjust for the xtals low to high. The MC bandswitch seems to be stable 
between bands now. This is on the Dittamore RX, #2. But all the modules 
are EAC. At least now I'm getting noise peak on the antenna trim which I 
didn't before.