Quote:
Originally Posted by Electronic M
The 6L6 is just a 6BQ6 with the plate lead out the bottom, and the 6BQ6 is just an octal 807....Granted the voltages they could take before arcing over at the base get better the more 807 ish the tube version gets so hams prefer the 807s.
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The 6BG6 is closer to an 807. So early GE and Dumont sets used an 807 as a horizontal output!