[Elecraft] KX-1 - cleaning up the squarewave sidetone?

[Phil Wheeler]

Wayne will be happy that the KX1 sounds better 
than a rotary spark gap :-)

73, Phil W7OX

On 3/12/15 1:21 PM, Rick Dettinger wrote:
> I have used an outboard audio filter to "clean up" square wave sidetones, like on my K1.
> Worked well.
> I remember when the modes came out to do this to the K2 sidetone.
> However, listen to an old spark audio file.  After that, everything sounds good.  Spark sounds like what you might expect a 5KW damped arc to sound like in a receiver.
>   
> 73,
> Rick Dettinger  K7MW