[Harp-L] Seydel SYMPHONY 48 magnetic

[JOSEPH LEONE]

I agree. I have dozens of magnets. And something I realized back in the 60s when I had 2 small Scotty dogs (one black, one white) that came with Black & White Scotch, was that at a distance there was NO repelling factor. Then when close together there was.

SO..we're talking about 4mm (.1577") movment to a chromo's slide. Yes, a magnet would work. BUT since a spring has a departure angle beween the legs at about 70-105 degrees with no load, and the spring is loaded once squeezed into the spring retaining hole, there is already a torque of several inch ounces. 

(figures only used as a guide). The tension is about 7 ounces at NO load. When the slide is pushed, the tension is about 8 ounces. All within 4mm. And the tension can be increased or decreased by re-adjusting the departure angle of the spring..to suit.

I don't see this with magnets. It would take a terribly stong magnet to even start at 7 ounces. Ergo, I feel that a magnet starts out with (virtually) no load or tension. I suppose suitable magnets could be found but as mine are all 'liberated' from electronics, I have yet to find a proper match. SO I see the result is that if one isn't careful as to how they rest their slide button in their hand, on the crease between their index finger and palm (as I do), it would be fairly easy to inadvertantly 'chip into' other notes. Maybe it would sound Ginchy, maybe not. :)

smokey-joe & the cafes
p.s. are you the man who lives up on Mt Royal near Shaler high school? 



> On January 27, 2020 at 8:55 AM turbodog at xxxxx wrote:
> 
>     Haha.
>     (BTW...If they changed one thing...it's possible to prescribe any load profile.)
> 
>     On Jan 26, 2020 11:57 PM, JOSEPH LEONE <3n037 at xxxxx> wrote:
> 
>         > > 
> >         It isn't that great an idea anyway. Starts at no load and goes to full load. Too easy to move slide at no load.
> >         smokey-joe
> > 
> >         > On January 26, 2020 at 8:59 PM turbodog at xxxxx wrote:
> >         >
> >         >
> >         > I read the breaking news report from Seydel with amusement.
> >         >
> >         > Why?
> >         >
> >         > Because Pat Missin and I had collaborated on a magnetic spring for chromatic
> >         > many many years ago. 1998 to be exact. (Ours was a little more sophisticated
> >         > than the Seydel version.) At the time, I considered it to be a frivolous
> >         > academic exercise... not believing that anyone would really want one.
> >         >
> >         > Goes to show that "What's new is old."
> >         >
> >         > Turbodog
> >         >
> > 
> >     > 
>