Quote:
Originally Posted by Phil Nelson
Funny how all of those 6SA7s were bad. They look identical. Perhaps the Tung-Sol quality control person had a hangover that day.
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If they're all bad in the same way, I'd be tempted to wonder if the original builder got a hold of some factory rejects for cheap - tubes that still perform but don't meet the full specs. Since this is a custom built set (and knowing a few people that like to hack together their own stuff), it might well be that the set will operate properly with those "bad" tubes that are out of official spec... but still in-spec enough for that design. I wouldn't bin them just yet
