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ebow?
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mi_dach



Joined: Dec 17, 2005
Posts: 133
Location: Sweden

PostPosted: Wed Oct 18, 2006 1:18 pm    Post subject: ebow? Reply with quote  Mark this post and the followings unread

Has anyone built an ebow, or know how to make one? I can't find very much info about how they work.
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Blue Hell
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PostPosted: Wed Oct 18, 2006 2:11 pm    Post subject: Reply with quote  Mark this post and the followings unread

My first thought was that it would be a gizmo in new clothes. But the ebow seems to be invented at around the same time.

The difference seems to be that the gizmo uses wheels, with resin if I'm not mistaken, to make the strings vibrate where the ebow uses a magnetic field.

[cpeculation=on]
Tthis hints at coils probably with an iron core driven by some signal which will require some experimentation I guess. But it's battery driven, which probably means it will not be too complicated a wave (which would require a good amp, meaning empty batteries always), but probably just some square or pulse wave.
[speculation=off]

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Blue Hell
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PostPosted: Wed Oct 18, 2006 2:32 pm    Post subject: Reply with quote  Mark this post and the followings unread

Found this : http://projectguitar.ibforums.com/forums.html?showtopic=7512&st=15 , seems to have some useful info.

There seems to be a pickup involved in the ebow as well, the signal being amplified and magnetically fed back into the string.

edit: http://projectguitar.ibforums.com/forums.html?act=Print&client=printer&f=16&t=7512 is the same but easier to read.

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mi_dach



Joined: Dec 17, 2005
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PostPosted: Wed Oct 18, 2006 11:17 pm    Post subject: Reply with quote  Mark this post and the followings unread

Hey Smile Although I didn't get either of those links to work, I did find a whole bunch of information on that site, so cheers for the tip! Will take a while to digest everything
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Uncle Krunkus
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PostPosted: Thu Oct 19, 2006 2:49 am    Post subject: Reply with quote  Mark this post and the followings unread

Have a look at this.

http://electro-music.com/forum/topic-13261.html

I'll be getting back to this experiment ASAP.

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mi_dach



Joined: Dec 17, 2005
Posts: 133
Location: Sweden

PostPosted: Thu Oct 19, 2006 3:03 am    Post subject: Reply with quote  Mark this post and the followings unread

Uncle Krunkus wrote:
Have a look at this.

http://electro-music.com/forum/topic-13261.html

I'll be getting back to this experiment ASAP.



Very interesting indeed Smile I will follow this thread with relish!
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Uncle Krunkus
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PostPosted: Thu Oct 19, 2006 3:14 am    Post subject: Reply with quote  Mark this post and the followings unread

I'm still wondering what to use as a pickup. That schem mentions old telephone transducers, but they're hard to find and too big. (I might need 6 or more for one of these units) So if you find anything which works well, I'd be glad to hear about it.
I recently acquired an auto-harp, and I'm wondering about making a tuned, playable reverb unit.

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Blue Hell
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PostPosted: Thu Oct 19, 2006 6:15 am    Post subject: Reply with quote  Mark this post and the followings unread

mi_dach wrote:
Hey Smile Although I didn't get either of those links to work, I did find a whole bunch of information on that site, so cheers for the tip! Will take a while to digest everything


The site seemed a bit slow responding yesterday, but the links are ok now from this place, anyway it's OK as long as you can find what you need Very Happy

Seems a fun project to me !

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Blue Hell
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PostPosted: Thu Oct 19, 2006 6:17 am    Post subject: Reply with quote  Mark this post and the followings unread

Uncle Krunkus wrote:
Have a look at this.

http://electro-music.com/forum/topic-13261.html



How could I possibly forget about that one ... must be an age thing ... Sad

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