SV: [sdiy] simple sequencer?

[Rönnberg Niklas]

Or you could try the old ETI project:
http://www.itn.liu.se/~nikro/diy/sequencer/eti603.pdf
You can find a better pcb here (well, it's the original layout, but in
better quality):
http://www.itn.liu.se/~nikro/diy/sequencer/pcb.pdf

I made some mods to it (but not particularly clever...) and there are some
photos here:
http://www.itn.liu.se/~nikro/diy/sequencer/

The project is fairly simple, and you can do many mods to it. Try it and
you'll learn a lot!

Best regards

/Niklas

-----Ursprungligt meddelande-----
Från: Tom Arnold [mailto:xyzzy at sysabend.org]
Skickat: den 23 juni 2004 16:39
Till: Charles Brodeur
Kopia: synth-diy at dropmix.xs4all.nl
Ämne: Re: [sdiy] simple sequencer?


On Wed, Jun 23, 2004 at 04:36:19AM -0700, Charles Brodeur wrote:
> Hello All,
>  Since I don't think I will be able to build a MIDI-to-CV module for
> the synth I am working on (no access to microprocessor tools), I would
> like to build a simple sequencer. 
>
> 
> I am looking for a simple 8-step design, CV output only. I have seen a
> few designs based on a handful of chips, I thought I would ask here to
> get the best results. The important factor in the design is that I
> would it must be simple. Also, I cannot produce PCBs, so the circuit
> would be built on perfboard.
> 
> If anyone here can recommend a design, I would appreciate it greatly.

If you want a simple midi/cv, this will be a weird suggestion but look at
the Tomcat on http://www.ele4music.com/kits.html, $34 for the board and PIC
and you could just stuff enough to make the midi/cv work although its
simple
enough to just stuff the whole thing.

For an all-analog unit, I cant suggest a place with a board but look at the
Seq2a schematic on on ele4music, or look at http://www.midwest-analog.com
and grab Thomas Henry's reprint book which has the SuperSeque ( which looks
to be what Tom based the Seq2a on ).  This is a 4516 based sequencer, 16
step but you could always ignore 8 steps worth of parts if you wanted. 

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