Quote:
Originally Posted by mstaton
If you put it back to original, you wont like it. You will have HV loss and a blurred dim picture if the contrast is turned up all the way. I thought there was something seriously wrong with mine until I found an article on it. There is a thread or 2 on that subject here on VK
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I tend to agree that it is better to keep the mod.. There must have been a reason that the subsequent chassis' had the new circuit. However, I also caught from the discussion that the larger overall cathode resistance with the bypass capacitor means that some of the DC coupling is lost. I will examine it more closely when I get the set working.
I removed and disassembled the focus pot for examination tonight. As I suspected, it had an open carbon track with a big burn hole. (See picture). The pot was replaced previously as there remained a trace of the old pot center lug attached to the soldered wire.