[CW] YouTube Video Fully Auto Key

[Pete Ferrand]

Hi Ken:

Can't comment on whether I was struggling or not, just working with a camera running is tough enough :)

There certainly was a Melehan Valiant key, lots of dope about it on the web. It's the design I started with 25 years ago, I built a copy of it from the patent drawings, it was awful. Years later thanks to the internet I found out that the prototype was awful as well. Mel Hansen, the designer, used a contact at the end of a long springy spring to make the dashes, a perfect method of creating contact bounce. There is no way to make that work over a range of energies put into the operation of the paddle.

Thus I eventually hit on a design that takes that issue out of the equation as described.

There was also an Australian key, the Automorse, I have one of those, it works OK but the release method design means it requires much more pressure than the typical Vibroplex design to work correctly, which I deemed not desirable.

Thanks for your note.

-Pete
WB2QLL
Somers, WI







-----Original Message-----
>From: Ken Brown <ken.d.brown at hawaiiantel.net>
>Sent: Sep 10, 2013 11:57 PM
>To: CW Reflector <cw at mailman.qth.net>
>Subject: Re: [CW] YouTube Video Fully Auto Key
>
>Didn't sound like he (or the key) was struggling.
>
>Wasn't there a Melahan dual pendulum key that produced both dits and 
>dahs? I thought I saw one on the web site of the key collector. K1TP I 
>thought?
>
>
>DE N6KB
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