[Elecraft] KPA100 problems

[George, W5YR]

Sounds like a low-frequency parasitic oscillation?

73, George W5YR
w5yr@att.net


----- Original Message ----- 
From: "Carl Strode" <crstrode@charter.net>
To: <elecraft@mailman.qth.net>
Sent: Saturday, January 17, 2004 10:25 AM
Subject: Re: [Elecraft] KPA100 problems


> David,
> 
> My K2 #3777 exhibits the same problem.  It is not a "problem" in most 
> cases since a change of few watts has virtually no impact at the 
> receiving end.
> 
> HOWEVER, it is a real problem when I use the K2/100 to drive an amp.  I 
> find it very difficult to properly tune my SB-1000 linear when the 
> output from the execiter (K2) is bouncing up and down.
> 
> Properly loading the grounded grid 3-500Z amp requires it to be fully 
> loaded, so a random step change in exciter output from 35 to 40 to 37 to 
> 42 etc. makes tuning a genuine pain.
> 
> Otherwise my KPA 100 is perfect in all respects.
> 
> Yes, it certainly would be nice to kill this bug.
> 
> Carl
> WA7CS