[Elecraft] K2 driving KPA500 / KAT500

[Lou Voerman W2ROW]

Ted,

Elecraft did publish an add on circuit to drive an amp from the K2. The bad
news is that I can not find it on their new website. Tom Hammond N0SS (SK)
designed a PC Board for an amp keying circuit which is no longer available.
However he published the schematic which you can find here:

N0SS K2 amp keying circuit
<http://www.mmccs.com/mmarc/n0ss/k2_t-r_rly_drvr.pdf>  

I hope the link works. I have not tried this circuit with a KPA500.

Lou W2ROW



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