Quote:
Originally Posted by Kevin Kuehn
All the electrolytic caps should be replaced, dry or not. Over time the dielectric breaks down just like the paper caps do. That 500 mfd cap can be replaced with a 470 mfd. Voltage rating can be higher, say a modern 25v shouldn't be much bigger than the original.
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I checked the Sam's for this TV and I Figured out that the 500 MFD 5 VDC Capacitor is the Bias Filter Capacitor, so it seems that if that capacitor has indeed failed like I am suspecting that it did, then it could very well be the source of my 5U4G's Arcing problems.
Would a 470 MFD 6.3 VDC electrolytic cap work as a replacement for this capacitor?
Also there's a 100 MFD 150 VDC capacitor that was a replacement at some point for C7 which was a 100 MFD 25 VDC electrolytic capacitor that must of failed at some point in time.
The strange thing is that when they hooked up the negative lead on that capacitor instead of using using the floating ground rail on one of the tube sockets or something they hooked the negative lead of that electrolytic to the chassis, which might also be causing some of my issues, C7 by the way according to the Sam's is the Vertical Output Tube Cathode Bypass Capacitor.