[R-390] R-390A AGC troubleshooting

[Larry H]

To aid in diagnosing AGC problems, Charles Steinmetz wrote a terrific
procedure many years ago and has updated it a few times since then, with
the last one on 2/17/20.  Because his procedure is so beneficial, I put it
on our website's ('Reference' page in the bottom of the 'Tutorials'
section). Here's a direct link to it: R390A AGC Diagnosing, Steinmetz
(r-390a.net)
<https://www.r-390a.net/R390A%20AGC%20diag%20Steinmetz%20LH.pdf>.

Because there can be some difficult AGC problems that require additional
diagnosing, I wrote a follow on procedure that you can use to help you find
them.  It's also in the 'Tutorials' section and here's a direct link  to
it: R390A AGC Diagnostic, Part 2 (r-390a.net)
<https://www.r-390a.net/R390A%20AGC%20Diagnostic%20Part%202%20LH.pdf>.

Regards, Larry