[Amps] Alpha 77Dx -Adding Grounded Grid Filament Choke

[G3rzp@aol.com]

In a message dated 05/03/2005 20:19:25 GMT Standard Time,  philk5pc at tyler.net 
writes:

from 90  to 800 volts break-down.



Note that the breakdown voltage at something like a 100 or 200  
volts/microsecond rise time can be as high as 1kV for a 90v beakdown gap -  according to 
the data sheet. Work I did 35 years ago on rx front end protection  found that 
quite accurate.
 
73
 
Peter G3RZP