[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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