[sdiy] Modular finally up and running!

Oren Leavitt obl64 at ix.netcom.com
Sun May 17 23:41:40 CEST 2009

Congrats David!
That first working DIY synth is the start of new chapter in life.
Take one last look at the "normal" world as you start your decent into 
the solder-smoke filled underworld of SynthDIY <evil grin>!

Here is shot of my first functional modular from around 1983:

That was the year I found Barry Klein's "Electronic Music Circuits" at a 
Heathkit store. Then came Electronotes...bye-bye "normal" life for me.

- Oren

David G. Dixon wrote:
> Well, fellow sdiy'ers, today has been a good day.  Don't laugh, but I
> finally got my little modular (modest though it is) up and running this
> evening, after many weeks of effort.  Granted, I've only got four modules
> and a power supply so far (I'm doing everything from scratch), but it sure
> was satisfying to power it up and have it all working together.  It looks
> nice too, in MOTM format with bare aluminum and black graphics in a pinewood
> case.  Plus, everything I've designed so far has worked exactly as intended,
> which is also pretty gratifying.
> So, I've got two full-featured VCOs, a triple LFO, and something I call a
> "multiplying modulator".  Tomorrow, I'll test out the very elaborate 4-pole
> filter design I've had sitting on a breadboard for two weeks, and if all
> works as planned I'll start laying out a board and a front panel for that.
> Then, I guess I'll need an envelope generator, a sample-and-hold unit, and a
> VCA.  I also have two matrix keyboards in need of scanning circuits, and a
> pile of parts for a 16-step sequencer... the fun never ends!
> David G. Dixon
> Professor
> Department of Materials Engineering
> University of British Columbia
> 309-6350 Stores Road
> Vancouver, B.C. V6T 1Z4
> Canada
> Tel 1-604-822-3679
> Fax 1-604-822-3619
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