04-12-2010, 07:34 PM
Hi, I swapped out the antenna section of the RF unit a few days ago and it appeared to fix the fading issue but it came back. I checked the service tips on the Philco Repair Bench website and noticed that one of the tips was for fading issue with the 37-650 and said to check part #8 a 40 Pf capacitor that developes an intermittent short. I noticed on my radio the AVC voltage fluctuates when the signal is going in and out so this may be something for me to check out. I don't look forward to removing the RF section as the cap is underneath the switch wafers.