[Elecraft] OT-old vs. new 6L6 to K3

Wayne Burdick n6kr at elecraft.com
Wed Mar 21 19:03:02 EDT 2012


Vic K2VCO wrote:

> Has anyone else noticed that the cw elements produced by the K3 are  
> distinctive? They are
> sharp and distinct, without any mushiness. The signal has presence,  
> and yet not a trace of
> clickiness, on or off frequency. There is the highest degree of  
> purity of tone, as well.

We investigated several rise/fall shapes (raised cosine, sigmoidal,  
and variations) and selected one that gave us both a narrow CW keying  
modulation bandwidth and reasonably fast rise/fall times.

We've have a few requests to make the transmit clickier, but have  
refused :)


>
> OK, back to my day job as a wine taster.

Oh, sure :)

Wayne
N6KR





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