[Hammarlund] HQ-180 service bulletins and recommended mods

[K3PID]

There is a pretty good AGC upgrade by WA8SAJ in the Sept 2014 issue of 
Electric Radio ( #304). I did it on my 180 and I like the results. Also, 
there is a series of videos on YouTube that cover the alignment of the 
receiver.

Ron K3PID