Hi Rich,
You constant habit of weaving personal attacks into technical
discussions ruins any hope of a meaningful conversation. I'd be
happy to get into technical details on how anything works, but
engaging in an insult-trading thread is nonproductive.
I really have nothing else to add, except measuring the tube in a
text fixture (using the actual circuit values) or the actual unit for
feedthrough loss is the only way to determine the effects of grid
impedance on "shielding" inside the tube.
I still offer to send you a plot taken with a network analyzer
showing this effect. It would be most educational for people trying
to learn what really goes on inside a GG amplifier, and what
causes instability.
73, Tom W8JI
w8ji@contesting.com
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