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Subject: Re: [motm] Re: Encore UEG

From: mark@...
Date: 2001-03-10

At 7:49 PM +0000 03/10/01, mate_stubb@... wrote:
>
>Just my personal opinion - I think you guys are nutz<g>!

We thank you for your support ;)

> The UEG is not designed or optimized for sequencer operation,
>it just includes a bonus pseudo-sequencer mode.

A Jupiter 8 wasn't designed or optimized for MIDI either :)

>I'd recommend either waiting for the
>MOTM sequencer, or building your own true sequencer if you can't
>wait. There are dozens of designs floating around that will clock
>faster, and allow you to get the trigger and gate output options and
>stage selection flexibility that you want. My point is that the
>amount of work you'd have to put into the UEG to turn it into a
>sequencer, could be spent to make an actual one. Hell, use my
>SuperMoe schemos if you like (published on my site).

I'll take a look at those, but building another sequencer will cost a lot
more money -- decent pots are very expensive. Adding another module will
also take up more room.

I'm also thinking an edge detector daughter board is something I could
build on a perfboard with a couple of IC's. You can't build an entire
sequencer that easily.

>Look at your UEG carefully. Notice that you will have to completely
>disassemble it to get to the pcb, because so many of the controls are
>mounted directly to it. Remember that it is more static sensitive
>than a typical all-analog MOTM circuit. You risk ruining a fine (and
>expensive!) module.

Yet, I won't have to disassemble it. With an edge detector I just need to
tap off of the CV out jack. In fact I could test it without taking the UEG
out of the rack, and even build it as a completely separate module.

>Not trying to be a wet blanket - just pointing out that you should
>pick your DIY battles carefully, and weigh the risks. I would be too
>afraid of screwing mine up, for not enough gain to satisfy me. You
>will have to make that evaluation yourself, of course.

That sounds like very good advice. So I'm thinking that instead of #1
re-writing the ROM or #2 tapping a voltage off of the PCB, that #3 building
an edge-detector might be the least invasive method.

So, do you want to help me with my differentiator circuit?? :)