IMPORTANT SAFETY INSTRUCTIONS WARNING - WHEN USING ELECTRIC PRODUCTS, THESE BASIC PRECAUTIONS SHOULD ALWAYS BE FOLLOWED. Read these instructions. 2. Keep these instructions. 3. Heed all warnings 4. Follow all instructions 5. Do not use apparatus near water - for example, but not limited to: near a bathtub, washbowl, kitchen sink, in a wet basement, or near a swim ming pool or the like.
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—Consult the dealer or an experienced radio/TV technician for help. CAUTION: Please note that any changes or modifications made to this product not expressly approved by Moog Music Inc. could void the user’s authority granted by the FCC to operate the equipment.
TABLE OF CONTENTS INTRODUCTION ANALOG SYNTHESIZER BASICS ASSEMBLY Parts List Instructions WERKSTATT FEATURES AND CONTROLS Default Settings Voltage Controlled Oscillator Voltage Controlled Filter Voltage Controlled Amplifier Oscillator Modulation Filter Modulation Low Frequency Oscillator Envelope Generator Keyboard Patchable Header Rear Panel ABOVE AND BEYOND Interfacing with Other Synthesizers and Effects Hacking &...
WERKSTATT-Ø1 The Moog Werkstatt-Ø1 is a patchable, 100% analog synthesizer whose design is based on classic Moog circuits. Assembly is extremely simple: Any user can quickly build this analog synthesizer with minimal tools and expertise. Through assembly and inspired investigation, the Werkstatt-Ø1 is an excellent platform for exploring the world of analog synthesizer circuits. A lifetime of...
By design, these modules are wired together using both audio signals and control signals. However, patch points and patch cables can allow these modules to be reconnected in new ways. This is the basis for the term Modular Synthesizer. The first Moog synthesizers were modular synthesizers. In this diagram of the Werkstatt modules, the solid lines represent audio signals, and the dotted lines represent control signals. The definitions and functions of each module are described in the Werkstatt Features and Controls section.
ASSEMBLY Putting together your Werkstatt is easy. No soldering is required, and all of the electronic components have been pre-assembled. The only tools you will need are a #1 Phillips [ + ] screwdriver, and a good pair of scissors. And while assembly is not complicated, it is important to follow each step, in order.
INSTRUCTIONS 1) ATTACHING THE FEET Attach the four rubber feet by pushing them into the holes of the Bottom Chassis and twisting. 2) TRIMMING THE NYLON WASHER The black nylon washer is used as a spacer between the audio jack and the inside of the Bottom Chassis.
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3) INSTALLING THE ELECTRONICS A) Carefully remove the Printed Circuit Board from the protective sleeve. Take the washer you prepared in the previous step and slide it onto the audio output jack, lining up the missing section with the metal tab on the jack.
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4) POWER / LED TEST Using only the included power supply, connect the barrel end to the power sup- ply input of your Werkstatt; connect the other end to an AC wall outlet (100-240 Volts AC / 50-60 Hz). At this point, the red LED on the front panel (LFO) should begin blinking. If it does, you’re ready to move on.
FEATURES AND CONTROLS The Werkstatt is a monophonic (one note a time) analog synthesizer, and as with many analog synthesizers, the Werkstatt is modular in nature. While there are many hard-wired connections that allow the Werkstatt to be used as-is, the addition of a Patchable Header allows the freedom to connect the modules in new and creative ways. DEFAULT SETTINGS Carefully set all of the controls to the default positions shown below. This will provide a great starting point for exploring the functions and features of the Werkstatt-Ø1 Analog Synthesizer.
(VOLTAGE CONTROLLED OSCILLATOR) The Oscillator is the primary sound generating component of an analog synthe- sizer. Based on the same circuitry as the Minimoog Voyager and Little Phatty, the Werkstatt oscillator produces a raw waveform that is rich in harmonics. While the keyboard determines the note being played, the frequency knob determines the pitch of that note. The keyboard determines the note played based on the setting of the Freq control - these two control inputs...
(VOLTAGE CONTROLLED FILTER) The Werkstatt uses the classic 24dB per octave Moog Ladder filter. This low-pass Voltage Controlled Filter (VCF) selectively shapes the timbre of the sound created by the oscillator, by attenuating and/or emphasizing certain harmonic elements. CUTOFF (CUTOFF FREQUENCY KNOB) The Cutoff knob specifies the frequency where the Filter is applied. Turning the knob to the right will open the filter, allowing more harmonic content to be heard, creating a brighter sound. Turning the knob to the left will close the filter, causing more harmonic content to be filtered, creating a darker sound. RES (RESONANCE KNOB) Directing the output of the filter back to the input allows the Moog filter to create a harmonic boost at the cutoff frequency. The amount of this boost, or emphasis, is controlled by the Resonance knob.
VCO MOD (MODULATION OF THE VOLTAGE CONTROLLED OSCILLATOR) Modulation is a way of introducing subtle or drastic changes to a sound—or anything in between. In order to use modulation effectively, you will need to select a modulation source, choose a destination, and control the depth of the effect.
VCF MOD (MODULATION OF THE VOLTAGE CONTROLLED FILTER) Filter Modulation changes the value of the Filter’s Cutoff Frequency. Either the EG or the LFO can be used as a Filter modulation source. When the EG is chosen as the modulation source, the polarity of the EG can be reversed for even greater sound creation options. SOURCE (SOURCE SWITCH) This switch allows you to choose which Modulation Source will be applied to the filter. EG: EG is short for Envelope Generator. When the switch is in this position, the Attack, Sustain, and Decay characteristics of the Envelope Generator will be used as the modulation source. LFO: LFO is short for Low Frequency Oscillator. The LFO produces a cyclic change that can be used to create a repeating effect.
LFO MOD (LOW FREQUENCY OSCILLATOR) The Low Frequency Oscillator creates a consistent modulation source that can be used to add a repeating, cyclical change to any of the modulation sources. It can be used to modulate the Filter Cutoff Frequency, the Pitch of the Oscil- lator, or the Width of a Pulse wave.
ENVELOPE (ENVELOPE GENERATOR) Each time a key is pressed or a trigger received, the Envelope Generator can produce a series of control voltages that allow you to change the value of cer- tain parameters over time. The Attack, Sustain, and Decay parameters combine to create an Envelope shape that can be chosen as a modulation source. SUSTAIN (SUSTAIN SWITCH) In a simple sense, the Sustain switch allows you to choose either a piano-like behavior, or something more like an organ, by activating the Sustain segment of the Envelope Generator. ON: When the Sustain switch is set to On, the Envelope will continue to sustain as long as the keyboard key is being played. In this mode, the Werk- statt behaves more like an organ.
(KEYBOARD) The Werkstatt is equipped with a one-octave, C to C keyboard. The keyboard features round buttons as opposed to traditional keys, but the layout is the same. The keyboard operates with a low note priority; if more than one note is played at the same time, the lowest note will sound.
PATCH (PATCHABLE HEADER) Unlike fully modular analog synthesizers that have patch points on every module, the Werkstatt has gathered these inputs and outputs into a single compact Patchable Header. The physical format is different, but the function is the same. The Patchable Header allows control sig- nals generated by the Werkstatt to be easily routed to the control inputs of the VCO, VCF, VCA, and LFO, vastly expanding the sound creation possibili-...
REAR PANEL The Werkstatt’s rear panel features two connection points; one audio out- put, and one power jack. AUDIO OUTPUT The Werkstatt’s single audio output features a 1/4” unbalanced (TS) jack. POWER INPUT Use only the DC power supply that was provided to power your Werkstatt. Plug the connector end into the Werkstatt, and plug the other end into a compatible wall outlet.
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To calibrate, play the lowest note on the keyboard, and set the VCO FREQ knob to the center position. Send a 0V signal to the VCO EXP IN patch point and measure the frequency of the VCO. You can use an instrument tuner for this function. Next, send a +3V signal to the VCO EXP IN patch point. Adjust VR5 to eight times the first frequency measurement (this equals 3 Octaves). Repeat this process to verify calibration accuracy. Note that on the Patchable V C O Header, the KB CV is output SW1 VCO WAVE as about 0.3 Volts/semi- P U L S E tone, which is equivalent T P 8 to about 3.6 Volts/Octave.
Warranty Warning Hacking or Modifying your Werkstatt in any way will naturally void your war- ranty, as Moog Music cannot warrant parts and labor outside the original configuration of the product. In addition, please note that any changes or modifications made to this prod- uct could void the user’s authority granted by the FCC to operate the equip-...
4. Specifications and electronic circuits of products are subject to change without notice. 5. MOOG MUSIC INC. does not recommend modification of its products. 6. Please be aware that modifying any Moog Music product will void the warranty. 7. MOOG MUSIC INC., its authorized dealers, and the distributors shall bear no liability for any damages (loss of business profits or data, financial loss, or impairment of health) resulting from your use of these circuit diagrams. This limitation of liability shall apply even if MOOG MUSIC INC., its authorized dealers, and the distributors had been informed beforehand of the possibility of such damages.
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SPECIFICATIONS All Specifications subject to change without notice. SOUND SOURCE: VCO - VOLTAGE CONTROLLED OSCILLATOR Range: 0 to +5 Volt Signal; 8Hz ~ 16KHz from KB and VCO Freq Control Controllers: Waveform Switch: Saw or Pulse PWM Knob: Pulse Width Modulation FREQ Knob: Sweeps VCO over 8 Octaves Control Inputs: KB CV: 1 Octave; with Glide VCO MOD: Selectable LFO/ EG Switch; Assignable Pitch or PWM VCO EXP IN: Exponential FM Input – 1 Volt/Octave nominal, trimmable via VR 5 VCO LIN IN:...
MODULATION SOURCES: LFO - LOW FREQUENCY OSCILLATOR Range: + 2.5 Volt Controllers: RATE knob: Modulation Frequency (.2 Hz ~ 600 Hz) WAVE switch: Triangle / Square Control Inputs: LFO IN: LFO Rate Control Voltage Control Outputs: LFO OUT: LFO Rate Control Voltage EG - ENVELOPE GENERATOR Range: 0 to +5 Volt Controllers: ATTACK knob: Attack Time...
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Audio Inputs: VCF AUD IN: Filter Audio Input (Un-buffered/Un-mixed AC coupled) Control Voltage Outputs: KB CV OUT (x2): Nominal 0.3V/semitone from 1 octave key board (Note: Attenuate for 1 V/Octave) TRIG OUT (x2): 5 msec, 0 to +5 Volt pulse from keyboard GATE OUT (x2): 0V (off) to +5 Volt (on) gate signal from keyboard EG Output (x2):...
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WARRANTY AND SERVICE INFO LIMITED WARRANTY Moog Music warrants that its products will be free from defects in materials and workmanship, and shall conform to specifications current at the time of shipment, for a period of one year from date of purchase. During the one- year period, any defective products will be repaired or replaced, at Moog Music’s option, on a return-to-factory basis.
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