[Hammarlund] HQ 140x BFO still not working

[Andy Bullington]

At this point I'm REALLY tearing my hair out. I've replaced all the 
micas and resistors in the BFO circuit plus most of the resistors and 
micas on the 6AL5 end, the 6AL5, the 12AU7, cleaned the switch, nothing 
seems to bring the BFO back to life. The called for voltages on the BFO 
side of the 12AU7 are off. I get 43 volts on the plate where I'm 
supposed to get 75 and nothing on the grid where I'm supposed to get 
-13. I'm at my wits end. Any ideas for an old musician? Thanks.

                               Andy W1AWB