[Amps] 8877 Grid Trip timing

[Jim Tonne]

Tom wrote (in part):

> My homebrew amps trip in less than 2mS of excessive grid 
> current. They also fault if the reflected power is more than 
> 20% of forward power.

Excellent!

And in the high power shortwave transmitter world those
transmitters use crowbars and trip even faster than that.  
Those big tubes are pricey and even a millisecond grid fault 
can melt it and cost a fortune.

- JimT   WB6BLD