[R-390] Bad resistors - the saga continues

[n4buq at knology.net]

While replacing the 27K resistors last night (and breaking one of those 
little two-pronged standoff which fortunately I had a replacement for but 
that's another story), I found R544 (2.7M in the AGC circuitry) to be 
completely open (or higher than the 30M my meter can detect).  I wonder 
what the effect this had on the operation of the radio?  I'm going to 
replace it, but was just wondering what function this resistor provides.

V506A's plate resistor, R549, was on the high side of it's tolerance (82K 
gone to 90K), but it was easy to get to and since one end had to be lifted  
to replace one of the 27K's, it's getting replaced too.  I also wonder what 
effect (if any) this would make on the operation of the radio.  Slight 
difference in AGC voltages?

Thanks,

Barry - N4BUQ