thethanimal
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You can tell I’ve been preoccupied with work, a clothes dryer repair, and two young kids with consequent sleep deprivation. I just pulled out the iPad to Google rectifier tube schematics while listening with my cheap class D amp, and all schematics for 5U4G, 5AR4, GZ31, and 5Y3GT tube power supplies skip pins 3 and 5. So I went over to just give my 5U4G and 5931 tubes a try in the amp… lo and behold! neither tube even has pins 3, 5, or 7!
I am now happily listening to Frank sing to only the lonely.
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