Quote:
Originally Posted by LukeSimon
What caused the RCA manufactured 6GH8A tubes to fail? The Sylvania branded tube that I removed from the TV had a different internal construction than the NOS RCA tube.
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I will see if I can find the documentation about the failure. RCA worked them on the ragged edge in some of its color sets and they were not as "robust" (my words) as those manufactured by Sylvania. I have 6GH8 tubes which are labeled "RCA" but the type font clearly indicates that it was manufactured by Sylvania.
Keep in mind also that manufacturers were often buying from each other and having them labeled as their own brand. Sometimes, you can tell by the EIA code one the item who really was the manufacturer.