Bill and Will's MOTM Analog Synthesizer
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!We decided to build our Synth in late 2005 and contemplated its layout and began collecting materials for it. When we actually began construction a bit more than a year later, in aught seven, Will and I started this site as a diary of our progress — really for our own reference — and at first, just for fun. So then we listed the modules we built in chronological order - like a diary. Recently, though, we've re-arranged this page so it's better for reference — by module name first. The route we took has been, in a way, less practical than it might otherwise have been. It would have been practical to focus on building modules needed to make sound soon. To do that, we might have built a white noise generator, LFO, oscillator, A filter or two, and an envelope generator and VCA. But, for a variety of reasons, we couldn't and therefore didn't follow that sort of course. Instead, as we got the kits we'd ordered from Paul Schreiber, we built them. And while we were waiting for shipments of kits, which came over a period of years, we built modules from other engineers too. As we built them we did alive/dead testing but no more. We put the modules away until we could get back to them later. By the time we at last had the opportunity to build our synth cases starting in March 2010 we had built a lot of the modules. Building the cases meant finally having power supplies readily available — and a enough critical modules — to begin real testing and calibration. We built a stand for the keyboard controller. We thought we were ready.... But life intervened. It wasn't until June of 2011 that we began plugging the modules in and really testing them. We started with the LFOs and they all worked fine. We tried very simply plugging the keyboard into the MIDI converter and made some sound with one of the VCOs — a 310. At least it made sound. And so, for fun, we hooked up the EGs and ran into trouble. We knew that some of the modules wouldn't work — I mean — it's completely predictable that we would make mistakes. But life (and death - and coming back from death - yup literally) intervened again and so we didn't have time to resume testing and trouble-shooting until June of 2016. And so as of now - June of 2016 we are resuming work testing and trouble-shooting and calibrating - and building modules again. We made a separate page documenting the process of making our way through testing the modules (here), but we wrote down our module-specific work on their respective construction pages. The diagram (way) above shows our cabinets with the modules we've already completed in white, the modules soon to be completed greyed-out, and the reach of the 20in MOTM standard power cables are the red arcs. It also shows the power indicator LEDs per our power distribution plan. The following image is of a patch sheet we made:
Click here to download the Powerpoint file (3.2M) we used to create the Patch Sheet. The modules are separate images you can use to make your own and to plan your synth. Click here to download a pdf (10.3M) of the above Patch Sheet 24in x 15in. Click here to download a pdf (6.3M) of the above Patch Sheet 17in x 11in . Click here to download the Powerpoint file (3.2M) we used to create the Synth Design diagram at the top of the page. We want to acknowledge the generous contribution of the Synth community in general in helping us in our endeavors - but we also want to thank some people in particular. (a list will go here) The page has gotten so long that we made a table of contents: |
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Table of Contents |
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Construction notes and images in module name order Construction (and snack) notes and images in chronological order |
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Construction notes and images in module name order
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April 2007 - |
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April 2007 - |
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April 2007 - |
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November 2008 - |
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January 2009 - |
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MOTM 320 Voltage Controlled Low Frequency Oscillator (with Tellun 320DB) |
June 2007 - |
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April 2007 - |
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February 2009 - |
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February 2009 - |
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October 2009 - |
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MOTM 440 "Discrete OTA Voltage-Controlled Lowpass Filter with VC Resonance" |
September 2008 - |
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MOTM 480 "CS-80 Resonant Filter - with Richard Brewster's modifications (and a little of our own!)" |
February 2010 - |
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February 2009 - |
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October 2009 - |
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MOTM 700 Dual 2:1 Voltage-Controller Router - a Two Dot Oh project |
August 2009 - |
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March / April 2007 - |
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MOTM 800 Envelope Generator - a Two Dot Oh project (with Tellun 800DB) |
August 2009 - |
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February 2009 - |
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Feb / May 2007 - |
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November 2009 - |
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Feb / May 2007 to Dec 2008? |
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November 2009 |
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July 2009 - |
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January 2008 - |
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September 2009 - |
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November 2008 - |
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January 2011 - |
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February 2010 - |
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January 2008 - |
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June 2012 - |
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January 2010 - |
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May 2008 - |
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April 2009 - |
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December 2007 - |
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April 2009 - |
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August 2009 - |
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June 2007 - |
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December 2010 - |
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December 2007 - |
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December 2010 - |
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December 2010 - |
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December 2010 - |
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February 2009 - |
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September 2009 - |
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December 2009 - |
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August 2009 - |
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Oakley Sound Systems Analogue Overdrive and Distortion Module |
January 2011 - |
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June 2010 - |
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May 2010 - |
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January 2010 - |
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March 2010 |
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December 2011 |
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Tellun 156 - "Neural Agonizer" voltage controlled spring reverb processor |
December 2009 - |
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Tellun 712 - "Doomsday Machine" voltage controlled waveform animator |
June 2007 - |
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August 2009 - |
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November 2008 - |
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June 2008 - |
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April 2009 - |
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September 2009 - |
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September 2008 - |
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Construction (and snack) notes and images in chronological order:
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Feb / May 2007 to Dec 2008? |
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Feb / May 2007 - |
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March / April 2007 - |
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April 2007 - |
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April 2007 - |
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April 2007 - |
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April 2007 - |
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June 2007 - |
MOTM 320 Voltage Controlled Low Frequency Oscillator (with Tellun 320DB) |
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June 2007 - |
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June 2007 - |
Tellun 712 - "Doomsday Machine" voltage controlled waveform animator |
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December 2007 - |
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December 2007 - |
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January 2008 - |
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January 2008 - |
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May 2008 - |
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June 2008 - |
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September 2008 - |
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September 2008 - |
MOTM 440 "Discrete OTA Voltage-Controlled Lowpass Filter with VC Resonance" |
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November 2008 - |
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November 2008 - |
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November 2008 - |
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January 2009 - |
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February 2009 - |
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February 2009 - |
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February 2009 - |
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February 2009 - |
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February 2009 - |
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April 2009 - |
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April 2009 - |
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April 2009 - |
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July 2009 - |
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August 2009 - |
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August 2009 - |
MOTM 700 Dual 2:1 Voltage-Controller Router - a Two Dot Oh project |
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August 2009 - |
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August 2009 - |
MOTM 800 Envelope Generator - a Two Dot Oh project (with Tellun 800DB) |
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September 2009 - |
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September 2009 - |
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September 2009 - |
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September 2009 - |
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October 2009 - |
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October 2009 - |
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November 2009 - |
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November 2009 |
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December 2009 - |
Tellun 156 - "Neural Agonizer" voltage controlled spring reverb processor |
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December 2009 - |
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January 2010 - |
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January 2010 - |
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February 2010 - |
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February 2010 - |
MOTM 480 CS-80 Resonant Filter - with Richard Brewster's modifications (and a little of our own!) |
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March 2010 - |
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May 2010 - |
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June 2010 - |
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December 2010 - |
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December 2010 - |
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December 2010 - |
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December 2010 - |
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January 2011 - |
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January 2011 - |
Oakley Sound Systems Analogue Overdrive and Distortion Module |
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December 2011 - |
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June 2012 - |
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Helpful Information
Tools List
Parts Lists / Bill of Materials for Synth Modules
Resitor Value Markings
Capacitor Value Conversions (μ, n, p)
Switchcraft jack configurations
Drawings of the Tellun MUUB2 Daughterboard.
Drawings of the Tellun MUUB3 Daughterboard.
Drawings of the Tellun MUUB4 Daughterboard.
Drawings of the Ken Stone / Bridechamber Buffer / Inverter PCB
John Loffink's "Chicklet" PCB
mrmike's Very Cool Module Library ppt File (for synth layout and design)
Keyboard Frequencies / Names of Notes
Technique for sorting resistors
Technique for soldering ICs into PCB
Technique for soldering Pots into PCBs
Technique for soldering Tempco Resistor into PCBs
Technique for stripping and tinning coax
Technique for attaching MTA Plug (Jill) to wires
Technique for matching transistors a lá MOOG
Technique for matching diodes
Panel Design á la Bill and Will
Links to Others' Sites
Synthesis Technology (Paul Schrieber)
Bridechamber (Scott Deyo)
Dave Brown
Hot Rod MOTM Shop (Dave Bradley)
Jürgen Haible
Please note: we have reproduced our friend, Jürgen's website here since his original site no longer exists and since it is invaluable and necessary for documentation for his modules. In 2007, he had given us permission to reproduce his documentation as we require - and although doing so for his entire website was not in our minds (rather conservation of his site's bandwidth was somewhat at issue), after his passing, our hyperlinks became unstable as his pages were moved around. Subsequently, his site has been reproduced by Scott Rider (click here) but we're going to keep our own copy alive so our links are stable and in the interest of contributing, in some way, to Jurgen's legacy.
Music from Outer Space
Richard Brewster's Synthesizer
Tangentsoft - has some great info in the Audiologica and Electronics sections
Tellun Industries (Scott Juskiw)
YUSynth (Yves Usson)
http://www.modularsynth.net
Parts Suppliers
Bridechamber (Scott Deyo)
Digikey
Mouser Electronics
Newark Electronic Supplier
Vintage Planet
Snacks
Baked Salmon - pesto - MOTM 310
Bill's Burgers - Yusynth Saw Animator
Bill's Famous Grilled Cheese Sandwich with Dandelion Greens - MOTM 800
Fried Italian sausage with hot peppers and potatoes - MOTM 830
Corned Beef Hash Breakfast for Supper - JH Krautrock Phaser
Frutti Del Mare w/ broccoli - JH Tau Pipe
Lamb Leg Roast - MOTM 420
Lamb Shanks - MOTM 480
Lamb Rack - YUSynth EMS Diode Ladder Filter
Mike F's Incredible Chili - MOTM 320
Grandma's Meatloaf - MOTM 440
Grandma's Bison Stew - MOTM 120
Paella - Tellun 156 Neural Agonizer
Pot Roast - JH Triple Chorus
Reubin Sandwitch - MOTM 700
Roasted Chicken with Root Vegetables - CGS65 Tube VCA
Scalloped Potatoes - MSE Mankato Filter
Steak Grilled on a Snowy Day - Yusynth Fixed Filter Bank
Slow Bread - CGS/Pugix
Face-plate Drawings
For a long time we had the face plate drawing here on this page, but the page got so long, That we moved them to their own page here.
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The fine Print: Use this site at your own risk. We are self-proclaimed idiots and any use of this site and any materials presented herein should be taken with a grain of Kosher salt. If the info is useful - more's the better. Bill and Will © 2005-2011 all frilling rights reserved
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