[R-390] Question

[Barry]

 C553 is not one of the trimmers.  It is located underneath the IF chassis.

Chuck Rippel used to have a webpage that clearly showed its location but I can't seem to find that at the moment.  Perhaps another list member can point you to that page.

Barry - N4BUQ

> My R-390A is an EAC 1967 contract. Looking at the Y2K manual, chapter 
> 12 page 5, my IF sub-chassis appears to be the MOD 1 with the trimmers 
> on top of the filters.
> 
> My question is: Looking at the drawing I don't see a C-553 listed. What
> capacitor am I supposed to change to protect the filters from getting 
> zapped by the B+ ?
> 
> Thanks
> Roger