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Original Message
RE: Opinions on the 6N2P for New Designs?
Posted by sser2 on May 25, 2017 at 19:49:31:
E is code for longer life.
B is code for military.
6N2P is nice 12AX7, but its heater has 6.3 V option only. The extra pin is connected to electrostatic shield between sections.