What Happened to 15AP22 Through 15FP22? - Videokarma.org TV - Video

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What Happened to 15AP22 Through 15FP22?

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05-25-2014, 09:32 AM

kvflyer

VideoKarma Member

Join Date: Nov 2006

Location: Fernandina Beach, FL

Posts: 1,126

And somewhat OT, the "A" in a vacuum tube could mean controlled warmup filament, or less microphonic, or higher voltages. I guess it would be too much for us to expect some kind of order

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