[Amps] Dual 3-1000Z amp problem

[ros]

What is your MEASURED plate voltage and current?

On 4/18/2016 9:19 PM, Clark Turner wrote:
> I just finished my Dual 3-1000Z GG amplifier.  I have an odd issue now 
> that I cant seem to figure out. The amp will do 2KW with 40 watts of 
> drive on 80 meters.  Additional drive does not add any power out.  100 
> watts input does 2kW out.  The Input SWR is low at 1.2 to 1.  The 
> plate current DOES increase, But there is no additional output.
>
> I had this amp running before with 4-1000 and 3-1000s and some of you 
> remember, I turned the roller inductor on accident when I was trying 
> to reach for the load turns counter. That toasted the plate choke. I 
> replaced that choke and while I was in the amp, I installed RF parts 
> RFC30 chokes instead of the HB ones.  I was having high input on 80 so 
> I changed them out. That is fixed but I now have this new issue.
>
> Any idea where to go?  This condition exists on 40 and 80.  2KW easy. 
> But then it wont make more.
>
> C
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