[Amps] Grid Protection Circuit for Titan 425

[Pete Smith]

...
>Jim Brown wrote:...I note that on SSB (altho I'm a CW man, I do work
> >SSB for contests), I often see flashes of overdrive LED when the
> >indicated grid current is only 20 mA for two tubes. This is with
> >heavily compressed audio (peak and average should not be widely
> >separated) and both meter and light calibrated per Ten Tec
> >instructions (DC voltage at a suitable point in the circuit).

Is this possibly the dreaded power spike that has been discussed from time 
to time here?  IIRC, Icoms are particularly but not uniquely susceptible

73, Pete