[CW] Regarding the slowing down of bugs......
Eddy Swynar via CW
cw at mailman.qth.net
Sun Dec 21 12:13:39 EST 2014
On 2014-12-21, at 12:07 PM, Steve WD8DAS via CW wrote:
>
> I've never understood the idea of slowing down a bug by adding weight. The swinging dit arm is a pendulum, and the period of a pendulum is controlled by the length of the arm, not the weight. You move the weight farther back to make the pendulum arm longer and slow it down. When you've reached the end you have to add an extension to the arm (which I did as a kid using the shank of a blank house key) to go even slower.
>
> On a pendulum wityh a small amplitude of swing like on a bug, adding weight without lengthening the arm will make it close the dit contact for a longer time, changing the length of the dits,but the speed would not be changed.
>
>
> Steve WD8DAS
Hi Steve,
Say what you will, the clothespin / PL-259 hood weights worked DECADES for me here, until I got an electronic keyer & Vibrokeyer...
~73~ de Eddy VE3CUI - VE3XZ
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