[R-390] Bad AGC

[Flowertime01 at wmconnect.com]

Al,

I do thank you for the article.

Would you know it. My R390 started behaving just as you describe. It works 
good in the Manual AGC mode and looses all gain in the AGC mode. I had been 
looking at the AGC sections looking for a cap that would short after it warmed up 
and not finding any thing. Now I have some place to go looking for the cause, 
and a real solution (new filter) when I find my exact problem.

I was still employed a while back and went on the road doing first article 
testing for a new Navy Ship. I watched engineers at several independent 
laboratories abuse some serious computer network equipment to qualify it for use 
aboard Navy ships. I had to give up the R390 net here as I was over extending my 
computer usage. But now I retired, moved from San Diego California to 
Westminster South Carolina. Maybe now I can talk to Hams In San Diego. I use to live in 
Spring Valley a bed room community about 10 mile from down town San Diego. I 
have radio contacts from Japan, Texas, Maine, Washington State and British 
Columbia, from Spring Valley. I knew every one in the El Cajon Radio Club, and 
never worked any one in San Diego. I love the aspects of antenna propagation. As 
soon a we finish moving in and I get the toys unpacked, I'll get back on the 
Air. Most likely I should ask the FCC for a new call and give up my old 
California KC6TRU call. The R390A is still packed. I had a good scope get crushed in 
the move, but every thing else survived.

A here I am, the first day back on line and Al has nailed a problem that I 
have been pondering for some time.

Thanks Al.

Roger L. Ruszkowski KC6TRU