Ed,

My Tokyo Hi Power solid state amp  would often go into protection with 
the 590 before the ALC mod was done.   It was more of a problem on 
SSB.   The work around on CW was to keep carrier level  in the low 20's 
instead of the default 50.   The work around on SSB was to run some 
minimal amount of processing.

Even with the work arounds, it would still trip the protection, and 
usually at the worst time.

Had the ALC mod done  in June of last year and  the few protection 
faults I've seen  since then have been pilot error.

The improvement  was very noticeable.  Again, the spike was less of a 
problem   on cw with the carrier  set lower.    Carrier set to the 
lowest setting that would still give full output power.

73, Steve KW3A





On 9/10/2015 5:29 PM, Ed Malmgren wrote:
> Steve,Forst, when you had the mod done did it do anything to the c w  >  note?  I was wondering if when using a solid state amp if there was 
 > a overshoot on the leading edge of the note that would kick the amp > 
off?  just curious.  Thanks and 73. > > ED K7UC >