>Looking at the N7WS figures, the thing that strikes me is the way the
>shunt resistance is increasing on the nichrome resisitors with
>frequency. ........snip........
>
>On a different tack, anyone any experience with 4CX1000A's (at HF) and
>parasitics?
>
It might be a good idea to provide a low L path between the grid terminal
on the socket, the grid termination R and RF-ground. The reason: the
tube has feedback C between the anode and the grid. A low Z path between
the grid and RF-ground helps reduce the amount of VHF fed back to the
grid.
Rich---
R. L. Measures, 805-386-3734, AG6K
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