[Elecraft] K3 delayed sidetone?

[Chuck Chandler]

A local who is getting serious about CW recently purchased a used K3.  It
just came back from the mothership and he is experiencing a sort of delayed
echo of his sidetone that is making it hard for him to send CW, as the
sidetone isn't tracking the keying.

I don't know the exact specifics of how his station is set up, but can
certainly ask.

I'm not near his radio, though I may be able to squeeze in a short visit in
ten days or so.  Any suggestions for what this might be, or what I should
check if I can get there in person?

73 de Chuck, WS1L

chandlerusm at gmail.com