[Moon-net] ALL, Input impedance of a tube

[Kim Liljekrans]

Hi all  OUPS

I naturally ment, the the tubes input / grid  will get more capacitive as F 
rises.

But in general below at least 500 MHz, the input L/C part will be "eat " 
/ parallel to the surrounding components.
SO a 1 GHz tube does not to be taken into account vy much at such a rather 
low freq.


VY 73 de  OZ5IQ, Kim