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Original Message
RE: To a point.
Posted by PakProtector on July 21, 2017 at 08:27:00:
I think the video pentode was just an easy choice driven by output impedance, gain and the required plate dissipation rating required to get the first two. For gain, gm and load resistance rule, and with output impedance, the load is set...which drives plate dissipation requirements well beyond the usual signal pentodes.
cheers,
Douglas