[1000mp] Keyer question on Mark V Field

[Bruno Treguier]

Hi there,

When using CW mode with my Mark V Field, I sometimes get a strange 
behaviour: when *briefly* pushing the "dit" paddle of my Iambic key in 
order to get only 1 or 2 dits, sometimes I get several additional dits 
(1 to 3 more), as if the paddle was stuck in the "contact closed" 
position, which I think is not the case, as I release it quite quickly. 
The key itself is an MFJ-564 and my keying speed is around 20 wpm, so 
not very high...

I fear my internal electronic keyer might have a little problem, as the 
MFJ-564 involves nothing but mechanical/electrical parts, but I'm not 
sure of the origin of the issue. It may also be that the tension spring 
is not tight enough. The extra dits don't happen systematically, they 
just show up from time to time, which makes the whole thing rather 
exasperating as it's difficult to reproduce when I'd like to show 
someone else (Murphy's law, as usual).

Has anyone seen that kind of behaviour before ?

Thanks in advance for any answer.

Best regards,

Bruno