Sequencer design and facilities...

[tomg]

Hi Chris,

> I'm designing a sequencer to integrate with Digisound and Modulus equipment.
> It's going to be a 16-step analogue unit with probably four CV channels and
> a couple of switchable Gate channels. It'll come in on a 12" x 9" panel for
> Digisound/Modulus sized synths, though there's nothing to stop you putting
> it ohn a 6U x 19" unit with bigger pots etc, I 'll only be doing panel
> artwork for the 12x9 though.. 
[snip]
> I was thinking of doing it so that several less than usual facilities are
> available.... It'd be good if I can get it to be a 4 x 16 parallel, 2 x 32
> (serial in parallel) and 1 x 64 (all serial) step sequencer,, 
[snip]

Have you ever seen one of those led-scopes. The way they work is by 
firing the horizontal lines with 3914s and vertical lines with 4017s I thought
this might make a strange vc-sequencer. You could select the sequence 
by changing the input voltage or make it random by applying a s&h voltage
or lfo.

With just 1 3914, 1 4017 and 1 4011 you can do a 10X8 array. 80 possible 
notes or 10 8-note sequences. Are you getting the idea? I've no time to flesh 
it out right now but it might be worth thinking about. I built a 3 chip scope once 
that actually worked and it ran on a 9V battery. It sucked but it worked.

-tg