[Elecraft] K3 Amplifier Keying

[Paul Christensen]

Phil,

You may want to isolate all three key lines using one of the many keying 
buffers available.  At an absolute minimum, consider using three steering 
diodes if only using a splitting RCA jumper cable from the K3 to the amps, 
using one diode (e.g., 1N4007 or if necessary, a Schottky type) for each amp 
key line from the K3 with all the cathodes combined together and pointing 
back to the K3 amp key line.

The ne-plus-ultra solution for selecting one of three amps from one of three 
rigs may be available in the very near future from W8ZR...

http://www.w8zr.com/homebrew/StationPro.htm

Paul, W9AC

----- Original Message ----- 
From: "Phil LaMarche" <plamarc1 at verizon.net>
To: <elecraft at mailman.qth.net>
Sent: Wednesday, December 16, 2009 4:28 PM
Subject: [Elecraft] K3 Amplifier Keying


> My K3 will be keying 3 amplifiers....144...50 and HF.  I have two amp 
> keyers
> that can be used or just one.  Should I find an RCA cable with 3 females 
> and
> one mail or does anyone have a better suggestion.
>
> Thanks
>
> Phil
>
>
> Philip LaMarche
> LaMarche Enterprises, Inc.
> <http://www.instantgourmetspices.com/> www.instantgourmetspices.com
>
> www.w9dvm.com <http://www.w9dvm.com/>
> 800-395-7795 pin 02
> 727-944-3226
> FAX 727-937-8834
> NASFT 30210
>
> K3  #1605
>
> CCA 98  00827
> CRA 1701
>
> W9DVM
>
>
>
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