Good day Jim and Group.
? Excellent effort as always Jim.? In the dim and distant past before spreadsheets we used to make Peter's (GM3SEK's) Rm as 200 ohms and the Q of the eL coil as 2. As you've noticed all that stray capacitance around the tube sets the minimum Q for the Pi part of the circuit. I've got all the formulae written on a crib sheet. makes working out easier.
73 de Michael G3TCA.,
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