Jim,
I used your values to calculate (by a series of parallel - series and series -
parallel transforms, the back of the NCJ renewal notice and an HP41CV!) a plate
impedance of 717 ohms at 1.8 MHz.
I take it we're talking grounded grid AB2? In that case, RCA say the plate
load, Rp is:
Rp = 2 (Plate voltage DC - minimum plate voltage + Peak grid voltage) / Peak
plate current.
I suspect that Vic may have a point about what the plate load should be: RCA
don't use K values for AB1 and AB2 calculations.
73
Peter G3RZP
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