[CW] Vibroplex weight

Thu, 11 Mar 2004 13:04:11 -0500

David

The first weight causes the rod to act as a horizontal lever; the second
acts as a movable fulcrum. The part of the rod between the first and second
weights moves very little if at all. The rest of the rod does the actual
vibrating. The weights are equal, so the balance is maintained anywhere
along the rod. The dot sound is good at any speed.

Ron
K3MIY

-----Original Message-----
From: [email protected] [mailto:[email protected]] On Behalf
Of David J. Ring, Jr.
Sent: Thursday, March 11, 2004 12:07 PM
To: Larry Ravlin; [email protected]
Subject: Re: [CW] Vibroplex weight

Larry,

You're better off with two weights.  That's why the Vibroplex keys were sold
with two weights.

Place one weight at the nearest point to the dot contact on the round rod
(closest to the operator) and then let the other weight slide about.

The distribution of weight along the rod helps the key make better dots.  I
don't know why but two weights does make a difference.

Can anyone explain why this is so?  Why it works better.  Someone told me
that it changes dwell on the contact.

73

David Ring, N1EA

----- Original Message -----
From: "Larry Ravlin" <[email protected]>
To: "CW" <[email protected]>
Sent: Wednesday, March 10, 2004 6:55 PM
Subject: [CW] Vibroplex weight

> I need the vibroples weight.  The one about 1/2 to 3/4 in. long.  I will
> trade two of the ones that are abt 1/2 that size.
>
> Larry L. Ravlin  AKA Laurence The Magnificent"
> [email protected]
> JESUS is LORD
> Amateur Radio Operator Extra Class @ 20wpm
> AA7LR
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