Printed circuit boards (PCBs) are sometimes available for some of these projects.
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The Multi-Use Universal Buffer (MUUB) is a general purpose daughterboard that can be used to add additional circuitry to MOTM, Oakley, Blacet, or almost any synthesizer module.
Status: All MUUB PCBs are sold out
Below is a list of utility modules that can be built using MUUB daughterboards.
Note that the panel layouts for these modules use the smaller type of knob found on Encore Electronic's UEG and Frequency Shifter. Most people will probably hate this, but I wanted to get the most functionality in the least amount of space while still maintaining some semblance to the MOTM standard. To this end, all of my MUUB utility modules use a new layout grid that allows up to 6 pots with 4 jacks, or 4 pots with 8 jacks, on a 1U wide module.
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The TLN-861 Dunsel is a utility module that generates several commonly used signals from an input voltage.
MOTM-style front panels for this module can be ordered from The Bridechamber.
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The TLN-864 Switching Comparator combines a comparator and an analogue switch. The switch operates in either a 2-to-1 mode, or a 1-to-2 mode, and the comparator output can be any fixed voltage or a signal from another module.
MOTM-style front panels for this module can be ordered from The Bridechamber.
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The TLN-865 Trigger Extractor & Window Comparator is an adaptation of a window comparator from Jung's Op-Amp Cookbook. This circuit can also function as a trigger extractor.
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The TLN-866 Gate Processor is a gate delay, a pulse stretcher, and a gate generator.
MOTM-style front panels for this module can be ordered from The Bridechamber.
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The TLN-867 Tuner & Headphone Monitor combines an A440 reference tone generator, a headphone amplifier, and a beat frequency indicator all in a 1U module.
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The DB-120 is a daughterboard for the MOTM-120 Sub-Octave Multiplexer. The DB-120 adds individual outputs for the four sub-octaves, a staircase wave that is the binary weighted sum of the four sub-octaves, and a switch for selecting either AC or DC coupling for the staircase wave and the signal appearing at the MOTM-120 OUTPUT jack.
Status: Sold Out
MOTM-style front panels for this module can be ordered from The Bridechamber and Stooge Panels.
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The DB-320 is a daughterboard for the MOTM-320 Voltage Controlled LFO. The DB-320 adds inverted outputs for the four LFO waveforms.
Status: Sold Out
The MUUB-4 replaces the DB-320.
MOTM-style front panels for this module can be ordered from The Bridechamber and Stooge Panels.
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The JLH-2090CV is a daughterboard for the Blacet/Wiard Miniwave. The JLH-2090CV adds voltage controlled switching of ROMs on Dave Hylander's ROM expansion board and an inverter for providing an inverted output from the Miniwave.
Status: Sold Out
David Hylander is now handling distribution of the JLH-2090CV. Contact him if you are interesting in purchasing a PCB.
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The DB-800 is a daughterboard for the MOTM-800 Envelope Generator. The DB-800 adds a comparator to the GATE input and a clipper to the output of the MOTM-800 EG. Two optional LED drivers are also provided, one for the GATE input and another for the EG output.
Status: Sold Out
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The TLN-156 Neural Agonizer is a voltage controlled spring reverb processor. Although this module can be used to simulate room reverb with most audio signals, it includes numerous enhancements specifically designed for interfacing to a modular synthesizer. If you're looking for a smooth, natural sounding reverb system to make your synthesizer sound like its being played in the Concertgebouw, then go buy a Lexicon. This is not your grandmother's reverb tank, this is a noxious tool capable of inflicting some serious damage to your audio.
Status: Sold Out
MOTM-style front panels for this module can be ordered from The Bridechamber and Stooge Panels.
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The TLN-712 Doomsday Machine is a voltage controlled waveform animator for modular synthesizers. Originally conceived as two separate modules, the TLN-712 comprises two different animation circuits and four voltage-controlled LFOs (low frequency oscillators). The first animator (Thalaran Radiation Emitter) is based on the Multi-Phase Waveform Animator by Bernie Hutchins. The second animator (Cascading Biogenic Pulse) is based on the Pulse Width Multiplier by Craig Anderton. Both animators have been combined into one module along with four LFOs to create a self contained system that makes optimal use of panel space.
Status: Sold Out
MOTM-style front panels for this module can be ordered from The Bridechamber.
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The TLN-854 Sword of Kahless is an amalgamation of a Doepfer R2M Ribbon to MIDI Interface and an unreleased ribbon controller I built for myself in early 2005. The R2M has some nice features (programmable, pitch quantization, no droop, MIDI in/out, position and pressure sensor) but is rather weak in the analogue control voltage section with only two outputs (position and pressure) and one gate output (position only). The TLN-854 remedies these limitations by using the R2M as the core of the ribbon controller and adding a substantially enhanced analogue output section.
Status: Sold Out
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The TLN-904 Veeblefetzer is a signal level meter for modular synthesizers. This module produces no sound; it is used to indicate signal level (voltage level) for both audio and control signals. I built this module because I got tired of hauling the scope over to my synth every time I wanted to check the level of a signal, or to figure out if a signal was bipolar or unipolar. It also provides lots of blinkenlights to mesmerize anyone who comes within visual range of your synth.
Status: Sold Out
MOTM-style front panels for this module can be ordered from The Bridechamber and Stooge Panels.
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The TLN-388 Doctor Octopus is a voltage controlled function generator that provides sixteen output waveforms grouped into two sets of eight. One set provides ramp/sawtooth waves while the other set provides triangle/sine waves. Each set of eight outputs are phase aligned to be 45 degrees apart.
Status: In Development
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The TLN-774 Vulcan Doppelganger is a four channel voltage controlled logic delay module. Much more than just a simple gate delay, this module acts like a digital delay line for logic signals and features four independent channels.
Status: In Development
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The TLN-428 is a state variable filter built around a Curtis Electromusic Specialties CEM 3320 chip. Four simultaneous outputs (all with two pole response) are provided: low pass, high pass, band pass, and notch. A built in mixer allows for two audio inputs. The filter frequency can be set using a panel mounted pot, a "one volt per octave" external control voltage, or via two external FM inputs with attenuators (one reversing). Filter resonance can be set using a panel mounted pot or an external control voltage with a reversing attenuator.
Status: Sold Out
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The TLN-442 is a four pole low pass filter built around a Curtis Electromusic Specialties CEM 3320 chip. A built in mixer allows for three audio inputs. The filter frequency can be set using a panel mounted pot, a "one volt per octave" external control voltage, or via two external FM inputs with attenuators (one reversing). Filter resonance can be set using a panel mounted pot or an external control voltage with a reversing attenuator.
A four pole low pass filter built with a CEM 3320 was used in the Sequential Circuits Prophet Five (rev. 3) and Pro One synthesizers.
Status: Sold Out
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The TLN-132 is a two channel VCA based on a Solid State Micro Technology For Music SSM 2022 chip. Both channels are identical and feature: separate linear and exponential control voltage inputs with reversing attenuators, a gain control for adding a constant value to the linear control input, and a bias control for adding a constant value to the exponential control input. Both linear and exponential inputs can be used at the same time. DC coupling is used throughout for passing DC signals. One signal input and one signal output are provided.
Status: Sold Out
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This is a simple cable holder that you can build to keep your collection of patch cables off the floor.
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