CIRCUIT BENDING ... Mini forum in a single thread !!!

[slug]

any chance you could post a pic of the board ???

slainte rob

Of course!! Its a little blurry though... poor scanner!!

As I say, from the rear, the board appears to be exactly the same as the one I mentioned before, its also identical to the one Reed Ghazala gives for the "speak and maths" machine in his book... but the bends both sources give dont seem to work for me!!

Thanks for taking a look!!!



hope thats big enough and not too big!!!

[pHz]

hmmmnnn ... youre right ... looks like a speak n math board more than anything else (but then my speak n math has a board identical to my speak n spell so go figure) ...

... odd though that it doesnt respond as expected to the speak n math pitch bend ... if it was me id hook a couple of wires to the middle and one end connection of a 500k pot ... tack the middle to the solder point from ghazalas book ...


... and then check in turn all the points in the area that pitch bends seem to come from on the speak n whatever boards ...


... if that doesnt find anything then someone whos done more of this than me might need to step in ... maybe even ask at the bending forum that in the list from the first post here ???

slainte rob

[pHz]

(BTW ... ive rotated your image 180 degrees so it matches the orientation of the ghazala schematics ... the oscillateur.com images are the opposite way up)

slainte rob

[mckenic]

Im off for a colonoscopy tomorrow Yucky!

BUT - I have this baby to look forward to when its over!!!







Dunno exactly all the functions - it looks like not much. The yellow keys play either a riff or a single piano sound. The 3 blue buttons start & stop a blues riff and the red plays one of three drum sounds... but it looks

OH and the plastic cyrcles light-up and the whammy bar plays a funky bend!



Fun! Fun! Fun!

Dave

[pHz]

looks cool dave ... on a similar note this was finally dispatched to me today ...


... and for the sake of £12.99 im tempted to grab one of these too ...


slainte rob

[_oswald]

Shit those look fun.

I haven't had time to 'bend anything for a while (and I fuckin' fried my Animal Band keyboard ) but I do have a really crappy 'Kawasaki' keyboard on the table ready for it.

Hell, I just found a guy who 'bent one. Take a look at the 'keyboard with acrylic ball' here.

After that thing is bent, I have two crappy toy kids guitars to bend. One I got at a thrift store and one from when I was a wee lad.

It'll be fun to bend a fav. toy of mine, as long as I don't fry it

Edit:

FOR TWO BUCKS.

Now I want to locate a 'guide' for bending an SK1. I know it's a widely-practiced thing and I'd like to not short out this toy.

[slug]

(BTW ... ive rotated your image 180 degrees so it matches the orientation of the ghazala schematics ... the oscillateur.com images are the opposite way up)

slainte rob

Cheers for the advice... I think I will take your advice - tacking one end of a pot and testing the points around the suggested area... Up till now I'd been doing it a reasonably dense way... lots of little solder blobs needing to be removed now!! hhaha!!! we live, we learn!!

Yeah, I've been looking at the book upside down!!

Thanks again!!!

slug...

[slug]

Now I want to locate a 'guide' for bending an SK1. I know it's a widely-practiced thing and I'd like to not short out this toy.

Ghazalz's book has a guide for bending the sk 1... There are 23 bends detailed in there... a good deal of them are located on the three IC chips, with the outside IC (e.g the one closest to the case side of the board) appearing to have the glut of them...

Hope that's helpful...



slug...

[_oswald]

Now I want to locate a 'guide' for bending an SK1. I know it's a widely-practiced thing and I'd like to not short out this toy.

Ghazalz's book has a guide for bending the sk 1... There are 23 bends detailed in there... a good deal of them are located on the three IC chips, with the outside IC (e.g the one closest to the case side of the board) appearing to have the glut of them...

Hope that's helpful...



slug...

[shamann]

I like my SK1 so much, I couldn't actually bring myself to try to bend it.

[_oswald]

I like my SK1 so much, I couldn't actually bring myself to try to bend it.

I just ordered a copy of Reed's book.

I can't wait to bend the holy f**k out of mine. RCA jacks galore!

[slug]

I like my SK1 so much, I couldn't actually bring myself to try to bend it.

I understand!!!! I felt the same way about the first few things I fried... I mean attempted to bend!! My girlfreind didnt speak to me for two days after tinkerbell died, tragically blurting out her last tiny tinkle... fizzle.. pop!!

slug...

[slug]

(BTW ... ive rotated your image 180 degrees so it matches the orientation of the ghazala schematics ... the oscillateur.com images are the opposite way up)

slainte rob

Cool!!!!!

Well!!! half of what I wanted happened after following your advice... I can now sweep high, but still no low... I read someplace that some S+S need seperate point for high and low frequency shifts... Mine seems to have an excess of high end potential bends... at least five of them!! now to find the low end point so I can get at them granular bits!!!

thanks for the tips!!! very helpful!!

slug

[adydub]

I like my SK1 so much, I couldn't actually bring myself to try to bend it.

I still regret selling mine 15+ years ago. Two track multi-timbral sequencer, manaul sync (two buttons let you step through the sequence an event at a time), additive synthesis (kind of), and 1 and a bit seconds of sampling time.

I feel e-bay beckoning me.

[waiting man]

my first mod of a guitar multifx pedal, more to come
here...