Re: OT: modifying your amp for lower drive requirement
Posted by
Jim Brown-10 on
Dec 21, 2010; 7:14am
URL: http://elecraft.85.s1.nabble.com/OT-modifying-your-amp-for-lower-drive-requirement-tp5854009p5854914.html
On 12/20/2010 5:08 PM, Don Wilhelm wrote:
> The Elecraft example is that the K2
> key-clicks were not a problem until the KPA100 was introduced. The
> added gain of the KPA100 caused that problem to be amplified (along with
> the signal). Elecraft responded with the Keying Waveshape Mod kit which
> corrected the situation.
Yes, and the TX phase noise from the K2/100 was not a problem until you
used it to feed a power amp, at which time your ham neighbors started
descending upon you. That happened to me when I moved in down the road
from K6XX -- it took him about two days to let me know about it. And
Elecraft's response was more great engineering in the form of the K3.
73, Jim Brown K9YC
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