We all know about the venerable 2A3... a tube that is just all around hard to beat. The thing makes music. So what have we here? Looks like a 2A3, but too many pins. Yep, this is an octal 2A3... known as a 6B4G...
Same specifications and construction but with one exception, the filament voltage is 6.3V instead of 2.5V.
so I would love to give these away to a nice home... they are tested... transconductance on each was well past 5.... as always, drop name in the comment box below...