[R-390] Making Progress on the EAC R-390A project

[Jim Green]

I have recapped the IF deck and replaced the 11.5Mc crystal. I have  
reception on all bands now.

I fried my crystal calibrator whilst performing an alignment. It  
happened when I put a 455kc signal into E-2110. Also, The procedure  
instructs one to use AN/URM-25 with CX-2919/U instead of cord W104 and  
connect the AN/URM-25 to test point E210 & rock it into zero beat.

First, I don't have an AN/URM-25. I have a HP8640. I don't know what  
the CX-2919/U is I assume it's a probe of some sort. I used a  
tektronics O-scope probe. I could hear no signal to zero beat.

When I was done, My crystal calibrator no longer worked. What am I  
doing wrong?