[R-390] R390A weak rf gain

[Craig]

Ray,

Let's see if this works: E607 is a test point, it should have +150V at that
location. Drag out that Y2K and follow chapter 6, step by step. This is of
course; all is correct with the entire receiver; no bad cap(s), resistors
correct value, tubes are good, etc. Mechanical alignment has to be correct,
then move on to the electrical alignment, etc. 

Late in revision 3 there is a great step by step, how to check the
sensitivity. All which is needed is a good signal generator, volt meter, and
a 600 ohm resistor. (I think) A 20:1 signal plus noise to noise ratio mean
you are there. If you have a ware house full of vacuum tube and feel like
swapping them, 30:1 is possible. 

Report back,

Craig