[sdiy] Aftertouch on YS-25D -> YC-25D?

[Bob Weigel]

DOH..thanks florien...too tired here.  Sorry for the confusion.

Florian Anwander wrote:

> Hi Bob
>
> sounds like you speak of a Yamaha organ: YC-25D (C instead of S)
>
> No further help from my side, because I owned only a YC30, which 
> didn't have the aftertouch (but a left/right movement pitch modulation)
>
> Florian
>
> Bob Weigel wrote:
>
>> Has anyone ever worked on one of these things?  I was figuring maybe 
>> a blown light but the light is good.  Then I see the way this 
>> thing..supposedly...works... it's got a thin metal strip and felt pad 
>> under it all the way along the keyboard it appears to me.  I see how 
>> it's supposed to work.  I think...the problem is that the foam as 
>> become too flimsy.  And thus when you push on a key there isn't 
>> enough BOW in the metal to create a length contraction that pulls the 
>> hings on the piece that covers/uncovers the light path.
>> But there's another strangeness.  When I move it manually I get a wah 
>> effect instead of vibrato!  The fixed vibrato works.  The pot for the 
>> touch is attached as it should be to that fixed vibrato pot and when 
>> you hit the 'vibrato mute' it mutes the wah effect for sure.  Very 
>> strange.  Has anyone worked on one of these or do you have a working 
>> one to let me know if it's supposed to vibrato or wah? :-)  I assume 
>> vibrato since that's what it says but it also bends the note a bit so 
>> you can do a manual vibrato by vibrating your fingers I guess :-) -Bob
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