[Elecraft] simple iambic paddles

Bob Nielsen n7xy at clearwire.net
Fri Apr 25 19:05:11 EDT 2008


Probably not a problem in modern solid-state rigs (and an electronic  
keyer would be used in any case).  However, that might not be a good  
idea for a hand key in some cases :^)

I was thinking the same approach could be used for a single-paddle  
design by placing the moving part in the center of the loop.

Bob, N7XY

On Apr 25, 2008, at 12:26 PM, Ron D'Eau Claire wrote:

> Yep. That's what fooled me. I just assumed the center post would be  
> the hot
> connection since one normally arranges things to touch only  
> grounded parts.
> (Normally doesn't always mean always...).
>
> Might produce some interesting results if there's significant RF  
> around when
> touching them.
>
> Ron AC7AC
>
> -----Original Message-----
>
> Well, actually, those clever paper clip paddles will only operate  
> iambic if
> you use the center post as ground.  That puts the part your fingers  
> touch at
> positive potential.  Probably not an issue, but I'd feel a bit  
> better if the
> finger pieces were ground.  That would require the center piece to  
> become 2
> pieces.
>
> And, boy is that design ever clever!  Very impressive.
>
> - Keith N1AS -
>
>
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Bob Nielsen
n7xy at clearwire.net





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