Need help with cooking up a circuit using an NE567N

Started by this_is_a_dead_end, December 27, 2004, 10:10:48 PM

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this_is_a_dead_end

I got a this tip from a contact of building a pedal using 2 or more NE567N IC parallel. It is supposed to sound horrible but that is exactly what I am looking for. I use my gear to create noise and even more noise so the worse the better.

I have built some pedals before using ready layouts and schematics so I have no skill to cook up any circuits of my own. So therefore I need the help from someone that wanna waste some of their time to help me out with a layout.

Here is some guidelines I got from my contact:

"i´d suggest to make some add-ons that allow to flip either to one circuit or two in parallel, or just mixing knob to 'tweak in'.

Some other ideas need to change the circuit totally, like
switching to synced mode, where both share the same initial control(like one LDR) but have a frequency offset knob, to keep the other circuit in different frequency, and switching to different modulation sources. It´s not actually THAT hard, i just haven´t come up with making the circuit to be voltage-controlled(that´s all it takes!)..."

and here is a schematic he got for the circuit:

http://www.angelfire.com/ego/sitruuna/images/noise567.bmp

So what I am most interested in is a pedal that uses 2 or 3 NE567N IC's in parallel with a mixing knob to 'tweak in'. More I want to make it controlled by pots and not LDRs (as in the schematic).

If you feel like you wanna try to make the circuit to be voltage-controlled as in the latter part of the text you are welcome to.  

Hope some of you genious out there got the time.

Best regards,

Klas

guitarhacknoise

Hello Klas!
I'm having a hard time finding that page. I would like to see it, but...........
the lmc567 is a fun little noise machine. do you have a better link?
-matthias
"It'll never work."

this_is_a_dead_end

Hi.
True, there seems to be something corrupt with the link.
I post the url to the page I found the schematic on. It is under 'Noise567'. It's really just a 'basic sketch' I think.

http://www.angelfire.com/ego/sitruuna/mech2.html

Hope it works this time.

Paul Perry (Frostwave)

Is that circuit from the (much missesd) Hemmo P.?

this_is_a_dead_end

Yes it is. I haven't been in contact with him for a while as well as I am not skilled enough to build something just out of his schematics and e-mail guidelines so therefore I try to get help from you guys.

"much missed"! Has anything happened to him or have you just lost contact?

Paul Perry (Frostwave)

Last I heard hemmo was OK, just changing his life a bit.
I only knew him thru this board. He certainly had a flair for unorthodox chip uses!

this_is_a_dead_end

Yes, I haven't heard from him since a couple of months before he was about to be a father.

I got another one of his circuits that's supposed to sound really awful which I also need help from someone to make a simple layout for me. It is probably pretty simple but as I told you before my skills in electronics are pretty non-existing when it comes to cook up circuits.

It is really 6 oscillators mixed in parallel using this one:

http://www.mouser.com/catalog/specsheets/40106BC.pdf

"6 40106´s together? yeah, works, just mix each oscillator´s output with a 10k resistors or bigger ones, and use the diode trick. Or (this, I´m not sure, if works) put up 5 oscillators, mix and put them into the 6th comparator and take the output from that comparator. All 5 oscillators are messed up pretty bad time. And make all 5 oscillators light controllable! Nausea!!"

(-----)

"The diode trick on the multi-oscillator thing is just that after you mix the
outputs with resistors, drive that output through diode, input at anode and takethe output from the cathode, and also a 100k resistor from cathode to ground. It just adds some more harmonics which sounds pretty awful in a really good way,that is. I did a pseudo-noise generator with 6 oscillators mixed together, withsteady pitches."

Not really a stompbox though. Any takers?