Does anybody have a simple analog sequencer circuit they are

[flowersniffer7]

Looking to build and analog sequencer to hook up to a bunch of 555 oscillators for some pretty harsh sounds... Anybody have an idea how this would be doable... I was also thinking of investing in one of those highly liquid chips and building a sequencer in MaxMSP then transferring data from Max to the oscillators via midi... would that work?

[synth_ollie]

this is super simple, only one ic !

http://www.midiwall.com/gear/babyseq/



cheers

OLLIE

[flowersniffer7]

[Scott Stites]

That baby sequencer really does, deliver, too. I used one for years!

Cheers,
Scott

[choklitlove]

sorry for not knowing, but what exactly could you do with that, or any type of sequencer? i see that it needs a "clock". it said it's used to control an analog synth. what exactly do they mean by "control"? thanks!

[flowersniffer7]

[Pehr]

[zipzap]

Well it is simple, like all the typical 4017 sequencers. I´ve got one running and running, and it´s much fun!
But i wouldn´t call it one an ic-project.
I would recomend some buffers as well as some circuitry to controll gates or trigger (with the basic shematic you get a single pulse when all gates are active, one rc and a buffer can give you single pulses for each step. Or and the gates with the clock)

Have a look here, looks a bit more complex, but in fact it isn´t really. And some of that you may not need. There is a clock on the top left. Next to it some circuitry for manual step/reset and for moog-gate. Could go without.
But look at how the 4017 is buffered. As i said, all you need is a clock.
The first step has a puls out, no need for that. I used one resistor for all the leds, makes it a bit simpler.
What´s good is the output mixer. That´s really a lot of fun. You have glide and offset.
That was one of my first projects, build like shit, lying on my desc with a simple square osc and a transistor distortion. Keep me playing for days till i decided i needed filters and stufff - so have fun!!!
http://www.synrise.de/diy/sequenzer/sequenzer.htm

By now this thing has grown huge. 4 rows of gate with variable length, 1-18 or dual 1-10 step mode, idependent clock dividors for each seq. Swingfeel clock, external ins for glide on off, reset and hold - that i can really recomend, it´s so cool.
I just want to point out that this simple design can be developed further and further.
Look at the step pots. add another row in parallel and you get a two chanel sequencer......
Another thing might be the original klee. Only needs few controlls, offering even more fun!

[fluxmonkey]

[flowersniffer7]

[jksuperstar]

The simple way to sync up the two, would send an audio pulse out, and use that as your clock into this circuit.

[flowersniffer7]

[zipzap]

The clock can be anything that makes a squarewave between ground and +. If you look at the shematic you can actually start with the 4017 and forget anything above. Just hook a clock to the clock in.
And for trying this you can test without the output stage, just feeding the cv bus (where the pots/diodes are joined) to anything that reacts to cv.
In my first version i built a clock first. Then i build on another stipboard the 4017 with the transistor buffers and wires going to the pots. (in the beginning only 3 pots).
that´s all.
Later i added gateswitches and glide and stuff.
It was really more simple than it looks. I was a reall beginner back then.
CMOS is great. like lego. nothing to worry, everything fits.

[synthmonger]

I built two of those baby seqs. I use one super crude version for my testing purposes and it's worked great for me thus far.

Though I'm wondering, would anyone recommend a good op-amp to use for adding glide/range to the CV output or does it not matter that much?

[zipzap]

cool it´s working!
If you are using a bipolar supply for the opamp than good old TL084 will be fine in my experiance. Note that only the opamp are powered by v+ and v-. The cmos chips are powered by v+ and ground.

[lalito]

how can I connect this sequencer to an atari punk console or a WSG?

[LukeDI]

[flowersniffer7]

[robthefiddler]

[noyau]

Nice sequencer, this Baby 10 !
Do you know where I can find a PCB and a component list, because I can't read schematics...

Thanks a lot

[v-un-v]

[noyau]

Oh, thanks a lot, this website is a goldmine, thanks a lot

[jenamu6]

I know this is an old thread, but I'm really interested in this:
http://www.synrise.de/diy/sequenzer/sequenzer.htm

But the link doesn't work anymore.............is there an other place to find this information?

[Inventor]

What a cool thread. You mean to tell me that's all a Baby 10 is? it's so simple, so elegant. Also I detect rumorings of a Boolean Sequencer in that schematic with the resistors and diodes.

I'd also recommend to anyone who feels they can't read schematics, to learn how to do that because it's a big part of how this hobby is done. v-un-v offers good advice - learn the symbols, then learn how the wires hook them up, go from there.

I'm planning to build a Boolean Sequencer in the next few months to control a Karplus-Strong string synthesis circuit, thus creating a kool noise maker DIY beginner project. That project, however, is just moving from the planning stage to the prototyping stage so it will be a while before it's ready.

[ErichBreakfast]

I just built a Baby 10 last week that was cut down to only 8 steps. It's a lot of fun. Although once it starts playing "Baba O'Reilly" and I pull the guitar out I'm pretty much useless for the rest of the day. Definitely a cool project.