[CW] The Quadra Bug

[Ken Brown via CW]

Hi Rich,

I was not implying that a fixed dot/dash ratio was a bad thing. I think 
it is a good thing. I was just finding it interesting how it was 
accomplished.

I suppose when there is adjustable dot and dash weight, what we really 
want to keep constant is the ratio of the dot repetition rate to the 
dash repetition rate. So a dot and an element space should always take 
one half the time of a dash and an element space, regardless of weight 
or speed settings. So while we often think about a 3:1 dash/dot ratio 
that is not really what we want if there is a weight adjustment. It is a 
2:1 dash+space/dot+space ratio that is important.

DE N6KB
>
>      Perhaps it is premature of me to talk about it now, but I am 
> presently working on a design that promises to improve on earlier 
> efforts.  It works nicely in the computer, but so did some of the 
> others.  If it is successful, any ratio of dot-to-dash can be set, and 
> the ratio will track over a wide speed range with a single adjustment. 
> It will be simpler to make than the QuadraBug and the recent TinyBug 
> Auto.  But I may be "counting my chickens before they hatch."  We 
> shall see - I will share the results with this group.
>
>      Ken is right about the relative fixity of the dot-to-dash ratio 
> in present designs.  The physics of compound pendulums and the 
> required bias magnets gets pretty complicated, so i think a new 
> approach is in order.  This is what I am working on now.
>

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