Right off the top of my head is you may be seeing power source issues due to failed caps. The Capars are evil incarnate, but it would not be a bad idea to recap all of the electros.
I have too many project right now, so don't even ask. :) Two broken amps to fix, a third for another ham, two FM rigs for yet another fellow, two Alpha amps to clean up and put online, and the list goes on....
73
-Jim
NU0C
On Thu, 25 Jan 2024 09:57:21 -0800
"Rick K8EZB" <frboswell@...> wrote:
Jim,
Thanks for the quick reply and photo. Yes, based on your photo, it does look like 10K (keeping in mind that I am looking at the RV75 for the first time ever!).
I am inclined to tack in a new resistor to see if this restores proper operation. If not, I lack the skills, soldering tools and test equipment to go further. Also, this RV75 has plenty of "CRAPar" capacitors. I am looking for someone who will take on the task of further troubleshooting, appropriate parts replacement and testing. Given the scarcity of the RV75, I am inclined to want to fix it rather than junk it. Any suggestions appreciated.
Best,
RB
--
73
-Jim
NU0C
Jim Shorney