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 Forum index » DIY Hardware and Software » Circuit Bending
Casio PT-87 "SCREAMER!"
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mister



Joined: Jun 06, 2006
Posts: 11
Location: Washington DC, USA
Audio files: 6

PostPosted: Sat Nov 25, 2006 9:53 pm    Post subject:  Casio PT-87 "SCREAMER!"
Subject description: my newest bend
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this little guy really makes some loud noise and is very fun. only three switches and one big color coordinated knob (okay and some resistors). check out the sound attachment and please let me know what you think. at some point I'll also try and post some pics.


Audio 1_06.wav
 Description:
one long rant of knob twisting and flip switching!

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 Filename:  Audio 1_06.wav
 Filesize:  9.07 MB
 Downloaded:  654 Time(s)

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EraSer



Joined: Apr 12, 2006
Posts: 82
Location: Italy
Audio files: 5

PostPosted: Sun Nov 26, 2006 2:29 am    Post subject: Reply with quote  Mark this post and the followings unread

Shocked it's incredible.
very cool sounds.
How did you make the whawha effect?
Yes,pleaz post pics.


cheers,
Mat.
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mister



Joined: Jun 06, 2006
Posts: 11
Location: Washington DC, USA
Audio files: 6

PostPosted: Mon Nov 27, 2006 4:34 pm    Post subject: Reply with quote  Mark this post and the followings unread

the one knob controls some combination of pitch and filtering/eventual glitching. I just gave the knob a little wiggle in the right resistance zone and got your whawha effect.

honestly the reason I have not posted pics is because I would like to add some bright LEDs and possibly a paint job to make it visually suitable for the camera. Not that it looks dirty or like crap, but just plain.

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screenhousemusic



Joined: Nov 28, 2006
Posts: 5
Location: new york

PostPosted: Tue Nov 28, 2006 7:51 pm    Post subject: Reply with quote  Mark this post and the followings unread

hey, sounds pretty awesome. my first bent instrument was a casio pt-87, but i found it pretty hard to find room in it to add switches etc. i left the speaker in, but i guess taking it out would be the best solution.

now i'm working on a pt-100, really finding some awesome sounds from it.



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myspace.com/screenhousemusic
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mister



Joined: Jun 06, 2006
Posts: 11
Location: Washington DC, USA
Audio files: 6

PostPosted: Tue Nov 28, 2006 10:27 pm    Post subject: Reply with quote  Mark this post and the followings unread

same thing here. I was able to mount switches at the top and near the speaker at the bottom. the biggest pain was mounting the potentiometer which took a little work with the drimmel, but with now damage to the exterior. I've left the speaker in for now, but there's not much room left so we'll see. all in all I think I'll leave this guy pretty simple and straight forward since the knob gives it lots of variety all ready. also keeping it simple makes it more fun for anyone who just picks it up. so when friends come over I can hand it to them and the almost immediately they are making noise and smiling.
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screenhousemusic



Joined: Nov 28, 2006
Posts: 5
Location: new york

PostPosted: Wed Nov 29, 2006 5:53 pm    Post subject: Reply with quote  Mark this post and the followings unread

yeah thats a good point, having a good instrument for friends to play, haha.
but yeah, i think i'm about ready to remove the speaker. only downside is the fact that its a monophonic keyboard. not a big deal though.
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screenhousemusic



Joined: Nov 28, 2006
Posts: 5
Location: new york

PostPosted: Thu Dec 07, 2006 5:24 pm    Post subject: Reply with quote  Mark this post and the followings unread

found some pitch-bend points on the pt 87, getting some better sounds out of it!
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gojsse



Joined: Dec 07, 2006
Posts: 2
Location: fargo
Audio files: 1

PostPosted: Thu Dec 07, 2006 11:06 pm    Post subject: re: Reply with quote  Mark this post and the followings unread

Heh, someone gave me their pt-82 a while back.

The thick sound you got is great.

Here is a file w/o effects an not multitracked, just me messing around with a bent pt-82.

I was able to pick up radio stations with a touch point and able to slow this thing way down. There was also a bend i found that made a strange pitch up when a key was pressed followed by a pitch down when a key was released. Sort of a gliding effect.

sadly it's in a paper bag in pieces waiting to be put back together.


PT8Z.mp3
 Description:
screwing around on casio pt-82

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 Filename:  PT8Z.mp3
 Filesize:  10.66 MB
 Downloaded:  362 Time(s)

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screenhousemusic



Joined: Nov 28, 2006
Posts: 5
Location: new york

PostPosted: Fri Dec 08, 2006 5:45 pm    Post subject: Reply with quote  Mark this post and the followings unread

thats pretty weird with the radio station. how did you go about figuring that out? i find that really awesome.

i just hate how this keyboard only has one note polyphony, but thats my only complaint i guess. oh and lack of space still, ahah.

i'll post a sound sometime soon
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kotep



Joined: Feb 13, 2007
Posts: 4
Location: toronto

PostPosted: Mon Apr 09, 2007 2:03 pm    Post subject: Reply with quote  Mark this post and the followings unread

wow man now thats something i would def buy......i have still yet to do my own project.....but was thinkin of maybe gettin a pt87 and gettin a friend to bend it.....

i assume your gonna use the device yourself right?
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gojsse



Joined: Dec 07, 2006
Posts: 2
Location: fargo
Audio files: 1

PostPosted: Tue Apr 10, 2007 10:41 am    Post subject:  Link Reply with quote  Mark this post and the followings unread

I know this isn't my topic but here's an album made from a slightly bent pt82:

http://www.archive.org/details/LLR036
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mister



Joined: Jun 06, 2006
Posts: 11
Location: Washington DC, USA
Audio files: 6

PostPosted: Thu Aug 16, 2007 9:50 pm    Post subject: long last pictures!
Subject description: finally I paint the SCREAMER
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this little guy sat on the "floor-o-toys" and saw a little recording action from time to time. now I finally take some time to give it visual credit.


screamer1.gif
 Description:
 Filesize:  99.61 KB
 Viewed:  6208 Time(s)

screamer1.gif



screamer2.gif
 Description:
 Filesize:  84.51 KB
 Viewed:  6208 Time(s)

screamer2.gif



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