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#1
08-13-2015, 05:48 AM
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Should I Return this Tube to Seller?
I got an NOS 6A8 from Antique Electronic Supply.
On my Heathkit TT-1 it tests OK except for grid current. I retested several times, making sure that tube was as hot as under operating conditions, but got the same result. Gassy tube? I have two used 6A8’s which show lower Gm, but no grid current. Truth be told, when the tube is in use I would probably never suspect that anything was wrong. What do you think, should I return the $12.55 tube or just pretend that I never tested it?
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Winky Dink Damn the patina, Full speed ahead! 
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