Quote:
Originally Posted by ARC Tech-109
I have to disagree with the part about tubes & PC boards.
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We were RCA dealers during those years, and RCA to their credit made a very sturdy PC with excellent foil adhesion. The boards and foils handled the heat from the tubes just fine.
But the problem with those TVs was that the solder would crystallize over time, so bad tube socket connections became a thing as these racked up the thousands of hours on them. Reflowing the solder on the tube socket/PC was difficult. Most times, replacing the sockets was the best option.
I bought my first Dremel (which I still own) just for RCAs in order to pull an offending socket and grind down the oxidized pins, then resolder them back into the board which worked well.
This certainly didn't affect every RCA with tubes and boards, and I assume they were higher hour examples or those that didn't get a lot of ventilation.
John