[Kenwood] Amplifier Keying from various transceivers

[Kenneth G. Gordon]

On 10 Feb 2013 at 13:22, Joe wrote:

> Now I am also in the same situation Kenwood TS-430S, and a old Heatkit
> SB-220 being brought out from the basement.
> 
> Now what are good designs for this thing to work happy, I do a lot of
> decent speed CW, and don't want to lose the first dit all the time?

Joe:

I can HIGHLY recommend Rich Measures' HSS (High Speed Switching) 
circuit, details of which you can find on his website at:

http://www.somis.org/

I and others have used this circuit with complete success with many different 
amps. I use it in one of my SB-200s, and Rich designed it to be used in an 
SB-220.

It provides full-QSK with none of the attendant problems of other methods.

Ken W7EKB