[Elecraft] K1 Keyer Problem

[Ken Wezeman]

My K1 has started having a mind of its own.  (It used to work just 
fine.  It is serial no. 1514 and has NEVER had a problem before.)  I 
started calling the other day and all of a sudden it sent  a dah when it 
finished sending a dit.  I checked it out a bit and noticed that 
occasionally it sent a dah when it hit the dit paddle also.  I don't see 
how it could be RF getting in.  I cranked it down to 100 milliwatts and 
ran it into a good dummy load and the problem did not change.  And it 
was no worse at 5 watts.  Bypass caps on the key line didn't help.

Any ideas?

Ken Wezeman, N9QIL