[K3] - relay clicking on sending CW

[Ray Albers-2]

I using a used K3 recently acquired: S/N 8240. I notice that when I send
CW, whether in full or semi QSK mode, there is a relay click upon the first
key closure - just for the first character, e.g., if I send CQ  CQ  CQ, the
relay clicks on each C only.

I thought the K3 uses diode T-R switching so I'm surprised that I hear a
relay operating.  Can anyone enlighten me as to what's going on?

(probably needless to say, everything is working great and I have no
problems - other than my curiosity!)

73
Ray K2HYD
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