I was aligning a Drake R-4B receiver. When aligning the receiver
sensitivity and the S meter the manual states to set the RF gain to
read -15 volts from TP2 (test point 2). The manual states to set the
meter to S40. At -15 volts the highest I can get my meter to go is
S20. I replaced every tube in the receiver except the first RF amp,
and the only reason I did not replace that tube is because I don't
have one of those tubes at this time.
The alignment instructions for this section are on-line at;

http://www.wb4hfn.com/DrakeManuals/R...ual_R4B_38.jpg

The full Drake R-4b manual with schematic is on-line at;

http://www.wb4hfn.com/DrakeManuals/R4B/Manual_R4B.htm

Any ideas why the S meter will not go to S40?