Tags: Oscillator module

Notes: ALM's first analogue oscillator is a typically smart design, featuring thru-zero FM, continuously morphing wave shapes, dual subs and voltage-controlled FM index.

Supplier's Notes:
The 'TAZM-O' is an analogue triangle core oscillator featuring through-zero frequency modulation and a collection of some of ALM's favourite features of classic oscillator designs.

It includes a continuous morphing wave/pulse width shape control inspired by the Serge NTO, dual SH-101 style varied pulse sub octave outputs, a voltage controlled FM Index typically found in larger complex oscillators, a built in output level VCA and voltage controlled octave transposition similar to the multipliers found on Akemie's Castle digital FM VCO.

Designed to act as the primary oscillator in your system the 'TAZM-O' offers a wide range of timbral and patch flexibility within a relatively compact 12HP size, making it the perfect fit for any modular system.

Continuous crossfading wave shape with direct and voltage control.
Through-zero FM input with direct and voltage controlled mod index.
Dedicated outputs for sine (or triangle), saw and square sub-1 & sub-2.
Primary output with level VCA.
V/Oct input with approx 8 octave range.
Octave transpose CV input ranging 3 octaves.
Hard Sync input.
LFO mode with bipoler LED indication.
Rear switches for selecting Sub-2 pulse width, and sine/triangle waves.
Skiff friendly with reverse power polarity protection.
Made in England.

Dimensions
12 HP
38 mm deep

Current Draw
70 mA +12V
60 mA -12V

Notes: Very nice old-school vocoder for Eurorack, featuring a built-in mic pre-amp and full 10-band patch bay. Internal VCO and straightforward control setup help simplify operation.

Supplier's Notes:
The VXC-2220 is an 10-band analogue vocoder with patch-bay for each individual filter section. VXC-2220 vocoder is based on the iconic classics 222 vocoder. For stand alone usage the VXC-2220 is equipped with an internal oscillator generating saw and pulse waves form C1 to C6. A simple and efficient vocoder.

Specifications

Microphone input for speech signal
Line input for speech signal
Line input for carrier signal
Input level control for speech and carrier signal
Output level control
Line output
10-Band analyzer outputs
10-Band synthesizer input
Internal VCO (1 semi-nut step size);
* Saw wave (C1 - C6)
* 3x 10% Pulse wave (C1+C2+C3 - C4+C5+C6 )
* White noise
- Synthesis for 's' and 't' sounds
- Feed-trough level control for speech and carrier channel
- Bypass switch
- 10pin power connector (+/-12V)

Dimensions:
(36HP) 128,5×182.5mm (depth: ca. 35mm incl. power connector)

Power Consumption:
+12V = 125mA
-12V = -125mA

Notes: The Wave Transformer is a complex single oscillator with 7 audio outputs. Its method of wave shaping differs from other complex oscillators in that it is not based upon classic wave folding such as is common in West Coast synthesis, or filtration such as is common in East Coast synthesis.

This analogue, vintage-voiced, voltage-controlled oscillator features over 8 octaves of accurate pitch tracking. Its 7 simultaneous wave outputs include a unique Complex output. This strange and novel output varies between a simple waveform (triangle, unless you patch a signal into the Shape Insert jack) and a complex transformation of the harmonic structure of the original waveform. It contains a unique mixture of the fundamental frequency, odd order harmonics, even order harmonics and subharmonics. The Sub Octave panel control will determine whether the sub harmonics are derived from one octave down, two octaves down, or are muted altogether. It will vary from a simple waveform to a silhouette of your cat watching you as you react to a "present" that it left for you on the counter. No, seriously.

The module's Transform control morphs from a basic waveform through many strange iterations into a complex, gnarled mass of audio mutations at the Complex output using an asymmetrical multi differential audio transmutation circuit. You can yield countless variations on these permutations by combining this novel circuit with Hard Sync, Soft Sync, Linear FM and Exponential FM.

Additionally, you can mute the source waveform to use the circuit as a harmonic gate/VCA, rendering the Wave Transformer a voice unto itself.

If that is not enough, there is a Shape Insert that allows you to transform external oscillations and modular-level audio sources.

Notes: Pony VCO is a fully analogue Thru-Zero oscillator with wavefolder and dedicated VCA in only 4HP. The module offers great stability and tuning capabilities thanks to its powerful core, based on Sound Semiconductors IC. It comes with a range selector, that allows it to go down to LFO range, as well as octave and waveform selectors.

Pony VCO is also available in 1U format keeping the same functionality and control layout.

Features

Through Zero Frequency Modulation
Wavefolding (Timbre)
Pulsewidth Modulation (PWM)
SYNC
VCA
LFO

Specs

Current Draw: +12v: 32 mA -12v: 25mA
Width: 4HP
Deepth: 30mm including power connector
Aluminium, heat-treated front panel.
Designed and assembled in Barcelona.

In Through Zero oscillators, frequency is controlled by either positive and negative voltage. If FM CV goes below zero, the core will continue oscillating inverting its phase. This "little" change of behaviour allows the core to create a whole new range of timbres that are just impossible to achieve with regular VCOs.
If you set the module as LFO, the range of funky modulations will be endless!

Notes: Cursus Iteritas Percido is the second module in the Percido line of powerful synth voices. Similar to its predecessor the Loquelic Iteritas Percido, CIP takes the original Cursus Iteritas and adds the same musical envelope from LIP with attenuverter-controlled routing to every knob. With the inclusion of the performance-oriented Master Blaster and CV outputs, CIP is a powerhouse of incredibly versatile synthesis in 24 HP.

Features:

Size and power:
24 HP
+12v: 105mA/60mA(if +5v on)
-12v: 60mA
+5v: 0ma/75ma (if +5v on)
Curses - series, from Latin cursus "series"

Iteritas - repetitiousness - from Latin itero "repeat" with suffix -tas "state of being"

Percido - from Latin danger

Dangerous repetitousness series

Notes: The Serge GTO is a newly designed, complex multi-functional module which can be patch programmed to provide various slew and sample functions both for audio and CV signals, but also act as a (dual) oscillator or filter or bitcrusher or ... It is one of the essential Serge modules. The GTO is an offspring of the famous Serge SSG.

The Smooth section will place a positive and negative slew on input voltage transitions for lag effects, voltage controlled portamento and for low frequency filter applications. In Cycle-mode (cycle jack patched to the input), the Smooth side “will oscillate yielding a voltage controlled triangle wave LFO. A high level into the HOLD input will enable the Smooth Function to be used as a track-and-hold circuit with voltage controlled slew rate.

The Stepped function can be used as a sample-and-hold with voltage controlled slew rate limiting. In Cycle mode, a pulse applied to the Sample input will generate complex staircase waveforms for control voltage applications and for use as audio signals.

Each side has a temperature-compensated 1V/Oct input for use as an oscillator with a frequency range of up to 20kHz (left) and 8kHz (right). Each side tracks over 5 or 6 octaves.

The Coupler is an internal comparator which compares the output levels of the Smooth and the Stepped Generators. This output is useful for generating complex control voltages or random voltages.

Dimensions:
18 HP
25 mm deep

Current draw:
45 mA +12V
40 mA -12V

Notes: The Triple Cap Chaos(C^3 Chaos) is a 2hp analog, chaos based, noise oscillator, pseudo ring modulator/harmonics generator, and audio mangler Eurorack module available as a DIY Eurorack kit, PCB and Panel, or built.

It is a unique module, like the Diode Chaos, because it has never existed as a musical instrument until now. There is also no other module to my knowledge that can do exactly what the Triple Cap can do. The circuit(with several modifications) is based on the paper "Simple Autonomous Chaotic Circuits" by J.C. Sprott and Jessica R. Piper. As opposed to the Diode Chaos that generates control voltage this module focuses on the audio rate.

The "Emanate" potentiometer controls the coarser overall spectrum of the chaos, from lots of activity counter clock wise up to less chaos and more of a steady oscillation. The "Width, CV ATT" potentiometer can be thought of as more of a fine control for the chaos/oscillator. When something is inserted into the "CV" in the voltage normalization from the width knob is broken and the potentiometer now acts as an attenuator for the incoming cv. The Triple Cap is not a traditional volt per octave exponential VCO, and has a sort of narrow frequency range to exploit the chaotic behavior.

It expects a +5v to -5v max signal in to modulate the chaos. The "IN" jack is an A.C. coupled input for audio in, although cv and audio can work for both the "CV" in jack and "IN." The "IN" will interfere and interact with the onboard chaotic oscillator depending on the frequency of the input, which may take some experimentation. It can create ring mod ish sounds, to added harmonics, to almost bit crushed sounds depending on the "X" or "Y" output. The "X" output is a more windy noisy sinusoidal based output and the "Y" output is more squared off and aggressive, harsher sounding output.

Some quirks about the Triple Cap: The "X" output can offset negatively or positively a little bit depending on the pot settings, but both outputs tend to stay around 10vpp. With the "Emanate" and "Width" pots all the way up the typical frequency will be around 150hz although some will reach 200hz at this setting. With the "Emanate" pot full counter clock wise "Width" pot full clock wise the frequency will be around 250hz. It is possible to send signals into the triple cap that can bring it out of the desired range causing the oscillation to cut out.

The Triple Cap has a double sided panel. meaning one side has the classic graphics and the other is Soulless with less graphics.

Notes: 8HP Tides version 2

Fully calibrated.

Notes: This all analog voltage controlled oscillator revolves around the reissue of the legendary Curtis CEM3340 IC, which is found in synthesizers such as the Prophet 5, Roland Jupiter Series, and more.

CEM3340 based VCO (triangle core)
Waveforms: Sine, Triangle, Sawtooth, Square
Linear and Exponential FM
PWM
Sync capability
1V/Oct tracking over 10 octaves

Tech Specs:
Width 20HP
Depth: 38mm
Current Consumption: +12V = 27mA, -12V = 24mA

Notes: DRONE38 is a sound generator with 18 oscillators in total, organized in six groups of three oscillators each. 12 of them can be switched between sawtooth and triangle waves, 6 are fixed sawtooth oscillators.

The groups can be mixed individually with 3 mixer knobs, where each 2 groups can be assigned to the level. Additionally, each group can be activated /"played" with buttons near the group.

The oscillators are not meant to be controlled by CVs, but only set static with a knob. By mixing them, very dense drones and clusters can be created.

Additionally, 6 oscillators can be synced to other ones for extending the sonic palette.

Notes: Module A-105-2 is a voltage controlled low pass filter with 24dB/octave slope.

It is the successor of the A-105 which had to be discontinued because the obsolete SSM2044 filter circuit. The A-105-2 is based on the SSI2144 which is in turn the successor circuit of the SSM2044. The features of both modules are nearly the same. The main difference is the clearly reduced front panel width of the A-105-2 (4HP instead of 8HP) and the associated changes of the controls and sockets positions. In addition the A-105-2 is equipped with 2 audio inputs.

The module has these controls and in/outputs available:

Control Frequ: manual frequency control
Control FCV2: attenuator for the frequency control voltage applied to socket FCV2
Control Q: manual resonance control
Control QCV: attenuator for the resonance control voltage applied to socket QCV
Control Input 1 Level: attenuator for the audio input signal applied to socket Input 1
Socket Input 1: audio input 1 (with attenuator)
Socket Input 2: audio input 2 (without attenuator)
Socket FCV1: frequency control voltage 1 (without attenuator, about 1V/oct scale)
Socket FCV2: frequency control voltage 2 (with attenuator)
Socket QCV: resonance control voltage (with attenuator)
Socket Out: audio output
Technical notes:

Frequency range: about 15Hz ... 15 kHz
Resonance up to self oscillation
Max. input voltage at Input 2 without clipping/distortion: about 15Vpp
Max. output voltage without clipping/distortion: about 15Vpp
The signals of both inputs are mixed before they are processed by the filter. This saves an external mixer for small setups.
Depth: 45 mm

HP : 4

Notes: Welcome to the Rosci soundscape. Rosci is a digital VCO that generates random waveforms to create unique, rich, and full sounds. You are able to control how complex the sound is-add harmonics and have a completely unique shape generate using the generate button/trigger. BUT, it can also be tuned to output basic waveforms (sine, square, sawtooth) if you so desire.

Tunable parameters breakdown:

COMPLEXITY: Essentially a generation of unique timbre.
ROUNDNESS: Set the basic shape of your waveform. Go from from sharp to soft sound, similar to filtering.
HARMONICS: Add up to 6 harmonies to your sound. The choir's here.
FORMANTS: Accentuate certain overtones in your sound (like a voice singing "ooo", "ahh", "eee").
DETUNE: Add a classic 'detune' with a changing phase wave for extra wide sound.

How does it work?

It is a pipeline of algorithms, which generates and modifies a waveform starting from top to bottom. Rosci works on a principle of key points: the generate button generates key point location and amplitudes to be passed down the pipeline.

Tunable parameters:

Beginning with complexity, you set the number of key points (even numbers only to create a waveform). Lowest complexity sets two points, and highest complexity sets up to 20 points. The number of key points will vary with each waveform generated. From there, the roundness sets the type of interpolation of the key points, from square to sine. Adjusting the harmonics creates copies of the waveform and adds them to the original waveform at double, triple, ... up to 6x the base frequency. Formants maintains the frequency of the wave, but squishes it so there is 'empty space' in between (this is also called pulsar synthesis). Finally, detune copies the waveform and 'detunes it' by increasing the frequency ever so slightly. And there you have it: a unique Rosci soundscape :)

Technical specs:

Module Size: 3U X 6HP X 25 mm Deep.
Current Draw: 160mA@ 12V, 20mA@ -12V.

What's in the box:

1x Rosci module
1x User Manual
1x Power cable
2x Mounting screws

Notes: The VCZIII voltage controlled oscillator modules are Feedback's latest creation and are based on the VCOs of one of the most revered analogue instruments, the famous British pin matrix synth released in 1969.

The VCZIII series VCO is a result of the collaboration of Feedback modules and CMS-LAB and is a modern re-creation of those temperamental, organic and beautiful sounding VCOs from 1969 but with enhancements and adaptations to the Eurorack needs of 21st century.

There are two type of VCOs, VCZIII A based on VCO1 with variable shape SINE & SAW waveforms, VCZIII B based on VCO2 & VCO3 with variable TRIANGLE & PULSE waveforms.

Also, each VCO comes in two versions, one with normal fine tune potentiometers and one with precision multiturn potentiometer.

THIS VERSION IS WITH BOURNS MULTITURN FINE TUNE POTENTIOMETER.

Tech specs:

- 12HP width
- 35mm depth behind front panel including the power connector
- standard 10 pin euro power +12V / -12V
- power consumption +12V 50mA , -12V 30mA

Notes: Clock generation meets waveform manipulation in this analogue harmonic oscillator. Combine with the Tobinski sequencer and/or interpolating scanner modules for the best creative results.

Supplier's Notes:
The Harmonic Timing Generator is a versatile Eurorack module that combines advanced clock generation with harmonic waveform manipulation. Combined with the Tobinski Sequencer, the module is a great tool for rhythmic and sonic creativity in the modular system.

As a reference clock generator, the Harmonic Timing Generator produces a base frequency with analogue multipliers (x1 to x8) to generate complex timing signals. Three selectors provide manual or voltage-controlled frequency switching, offering flexibility for intricate sequencing patterns. An LFO mode enables slower clocking rates, ideal for driving sequencers or generating modulation sources.

When used with the Interpolating Scanner, the sawtooth outputs of the Harmonic Timing Generator are transformed into sine waves. This allows the module to function as a harmonic oscillator at audio rates or as a versatile modulation source in LFO mode. Its dual functionality ensures that it can adapt to a wide range of patching needs, from rhythm generation to rich harmonic exploration.

The Harmonic Timing Generator is a versatile and creative tool, offering rhythmic and harmonic possibilities that complement any modular synthesizer setup. Its integration with other Tobinski modules ensures a cohesive and expansive sonic palette.

Power consumption: 235mA at +12V and 176mA at -12V and 20mA at +5V

Depth: 27mm

18 HP

Notes: Module A-188-9 is a so-called high speed VCO that tracks perfectly to the 1V/oct scale in the frequency range of about 15kHz ... 500 kHz. The main application is the exact drive of BBD modules (A-188-1/2) to generate sounds realized by means of the so-called Karplus-Strong synthesis. But even in cooperation with other modules featuring high speed inputs (e.g. digital noise, delay, frequency divider) the A-188-9 makes sense. In principle the module is made of a precision audio VCO followed by a PLL (phase locked loop) unit that multiplies the frequency of the audio VCO by 32. Thus the module can be used also as an audio VCO as it features the standard waveforms sawtooth, triangle and rectangle with adjustable pulse width.

Controls:
Frq: frequency control (coarse)
CV: attenuator for the frequency control input CV
Fine: frequency control (fine), small control without knob
PW: pulsewidth control for the rectangle output of the audio VCO, in HSVCO mode this control has to be in the range marked "HSVO", small control without knob

Sockets:
1V: frequency control input 1V/oct scale
CV: frequency control input with attenuator CV
socket with rectangle symbol: rectangle output of the audio VCO, the pulse width of this output is adjusted by means of the control PW, output level ~ 7Vpp (~ -3.5V/+3.5V)
socket with sawtooth symbol: sawtooth output of the audio VCO, output level ~ 7Vpp (~ -3.5V ... +3.5V)
socket with triangle symbol: triangle output of the audio VCO, output level ~ 7Vpp (~ -3.5V ... +3.5V)
socket with inverted comb symbol: high speed VCO output, waveform rectangle, output level ~ 5Vpp (~ -2.5V/+2.5V)

Switches:
Range
upper position: audio VCO mode (frequency range of the audio VCO about 15 Hz to 6 kHz, the high speed output is not usable in this mode! )
lower position: High Speed VCO mode (frequency range of the high-speed output about 15 kHz ... 500 kHz, frequency range of the audio VCO about 500 Hz ... 15 kHz), in this mode the audio VCO and the high speed VCO can be used simultaneously

Slew
upper position: medium slew time
centre position: short slew time
lower position: long slew time
Technical Note regarding the Slew parameter:

Besides the audio VCO the module contains a so-called PLL circuit (Phase Locked Loop) and a 1:32 frequency divider. A slew limiter is part of the PLL. It defines how fast the frequency of the PLL follows the frequency of the VCO. The PLL cannot follow the VCO without any delay. Rather one has to find a compromise between the residual ripple of the PLL frequency and the frequency follow rate. That is the job of the slew limiter (works in principle like a glide or portamento unit). For this the module is equipped with a 3-position switch that is used to switch the slew time in 3 ranges. When mostly higher frequencies are used ((~ 100kHz ... 500 kHz) a short slew time can be chosen. When also lower frequencies are required (< 100kHz) a longer slew time may be used to reduce the residual frequency ripple. More details about the working principle of a PLL can be found in the information about module A-196. Module A-188-9 is in principle an A-196 combined with an audio VCO and a 1:32 frequency divider.

Width: 4HP / 20.0 mm
Depth: 45 mm (measured from the rear side of the front panel)
Current: +30 mA (+12V) / -15 mA (-12V)

Notes: Analogue VCO with range from 16Hz up to 32.000Hz.

Variable Voltage Controlled Wave Shaper.

Advanced pitch control with Voltage Controlled Quantizer, so it is always in tune.

Hard Sync Input.

Separate Pulse Output, for use as a clock or to sync other oscillators
.
Power Consumption: 114mA @ +12V , 46mA @ -12V.

35mm depth.

Notes: A classic all analogue saw VCO core with 3 switchable modes, ART, 1V/Oct, LFO and is recommended as the basic building block for ART systems. It is designed for patching analog polyphonic synths from discrete modules or multi-mono patches in ART mode. When using ART the ATX1 takes care of the tuning including accounting for temperature changes. In 1V/Oct mode the ATX1 runs as a standard old school modular VCO. LFO mode drops the frequency range and is great for patching vibrato to other ATX1s among other things. The ATX1 outputs variable waveshapes with manual or CV control. Classic FM, PWM and hard sync are provided. A dedicated Gate Out in ART mode manages the voice envelopes or any modulation synced to that voice. TipTop consider the ATX1 the best sounding analogue VCO they have ever created.

Size: 8HP - Depth: 40mm / 1.5"

Power: +12V 105mA / -12V 33mA

Notes: Shapes is a wide ranging and fully analogue oscillator which can perform duties as both auxilliary VCO* as well as VC-LFO. Shapes can be configured to cycle continuously, or to provide one-shot shaped outputs. When set to one-shot mode, Shapes may be used as an ersatz envelope generator.

Using the Time knob, Shapes can cycle from as low as 8 seconds (whale song) to as high as 19500Hz (bat beeps).

Shapes has 3 simultaneous outputs:

sawtooth (+/-5V, 10Vpp)
ramp (+/-5V, 10Vpp)
triangle (+/-5V, 10Vpp)
Additional waveforms may be derived courtesy of the Shape knob. Anticlockwise from 0 achieves progressively logarithmic sawtooths and ramps, whereas clockwise from 0 achieves progressively exponential sawtooths and ramps. The effect of the Shape knob on the triangle waveform is asymmetric, anticlockwise from 0 achieves progressively logarithmic leading edge, whereas clockwise from 0 achieves progressively exponential falling edge. Progressively exponential triangle waveforms can be achieved using the Time CV knob (set Shape knob to 0) providing there is no jack in the Time CV input socket

Time CV input provides wide ranging control of time. It is possible to dial in something approaching 1V/oct over a limited range, although Shapes has not been designed to perform as an accurately tracking VCO. In the audio range, Shapes comes into its own when used as a 'daughter' VCO to an external 'mother' VCO by patching the 'mother' VCO into Shapes' Gate In input socket - some impressive oscillator sync style effects can be achieved.

Gate In can also be used to initiate waveforms in one-shot mode, where a pulse of any length will cause Shapes to complete one cycle.

*Shapes has not been designed to perform as an accurately tracking audio VCO.

Product Specifications

12V draw: 15mA
5V draw: 0mA
-12V draw: 15mA
Depth: 45mm
Width: 4HP

Notes: Vortex 6 us a polyphonic 6-voice wavetable oscillator inspired by the hardware design and sound of the PPG Wave 2.2, and it is the only oscillator of this type that uses true 8-bit vintage audio converters from the '80s. Dozens of wavetables are provided internally, and user tables can be loaded via an SD card. VORTEX6 has built-in vibrato, glide, and six wavetable-scrolling envelopes, all with CV. The ART-in jack and a built-in voice manager take care of incoming notes and distribute them to audio, gate, and velocity outsieither through per-voice 3.5mm jacks or the Polytip jacks. Together with OCTOPUS, one or more OCTOSTAGES, OCTOPASS, and OCTOGAIN, along with a few Polytip patch cables, it forms the world's first complete six-voice polyphonic modular synth. Alternatively, VORTEX6 can be patched to discrete mono modules or use its voice mix-out for paraphonic soundscapes with up to 12 oscillators in detune mode.

Size: 20HP - Depth: 40mm

Power: +12V 190mA / -12V 50mA

Notes: The Furthrrrr Generator has a main oscillator (carrier) with an extensive and fully voltage controllable wave multiplier and a modulation oscillator (modulator) that can cross-modulate the carrier. Each oscillator has hard and soft sync and also features an integrated tuner: if both LEDs are lit the VCO is at note A. Left LED is lit at note Ab and right LED at A#. Frequency potentiometers are ten-turn models and thus allow for easy tuning. Frequency range of the VCOs is 10Hz-10kHz (and much lower in modulator's LFO mode). Both VCOs feature 2 frequency CV inputs (1x with bipolar attenuator, 1x with 1V/octave), one FM input (jumper selectable between linear and exponential FM) as well as separate input for hard and soft sync. The voltage characteristic can be selected between 1V/octave and 1.2V/octave (Buchla norm).

The main oscillator (carrier) outputs the waveforms sine, saw, square and white noise. The two outputs marked with the magic eye are outputs of the "harmonic section" that generates very complex sounds by the wave multiplier and its parameters symmetry, order and Furthrrrr in the module's right-hand section. Symmetry lowers the level of even harmonics and amplifies the odd harmonics (this affects the pulse wave's width as well). Order adds saturation to the high order harmonics and resembles a low pass filter. Furthrrrr alters the level of harmonics set by the other parameters and produces very interesting, partly brute sounds with lots of harmonics by clipping and folding the wave. All three parameters can be voltage controlled. The carrier oscillator also has inputs for hard and soft sync, the sync-switch can synch directly to the modulator.

The modulation oscillator (modulator) has three wave forms with direct outputs: sine, saw and square. Using the internal modulation via the "mood section" the waveform is selected with a button; an additional staircase wave form is available here, but it can be overridden by inserting a signal into the external input socket. A switch activates the LFO mode.

The Mood section is responsible for the internal modulation of the carrier by the modulator. Switches determine the modulation destination(s) that can be activated simultaneously. These are the Furthrrrr parameter of the harmonic section, the amplitude and the frequency of the carrier oscillator. The "balanced" switch activates the ring modulation between both VCOs. intensity of modulation is controlled by the "mood index" potentiometer and the according CV input with bipolar attenuator.

Notes: This is a self contained analogue high hat module. This is a Transistor based VCA design. It is influenced by the DR110 drum machine. The original circuit used 4 oscillators to make the metallic audio sound. I added the original 4 oscillator, and an extra 6 oscillator circuit. The 6 oscillator version is doing a double XOR ringmod (internally). You select that by switch.

The 4 oscillator design sounds more crunchy, where as the 6 XOR circuit sounds more polished with sheen. You can blend in the amount of white noise in the mix labeled 'sizzle'.

Internally, the audio is passing through a few high pass filters, making the output sound very high in frequencies.

The module by itself is not exciting. But in the mix, with other percussion modules, this is your favorite-go-to module. It sits almost perfect in the mix.

There are two triggers. One is for 'Open' sound. The other is for 'close' sound. Both open and close have there own decay knob to adjust the length of the audio tail.

There is a tone control, labeled LPF. Use this to taper off some of the high frequencies.

Instead of adding an 'accent' control. Both triggers have been made to voltage variable. 5V triggering is the normal expected input. So a 3V trigger will sound softer in volume. 10V trigger signals will sound louder.

This module is as simple as it gets, just patch your Arturia Beat Step Pro and use the drum track.

Features

-Both trigger inputs are voltage variable. You can get softer audio, with softer trigger voltage.
-2 voice metallic noise generator
-2 decays (open and close)
-2 Flavors select by switch.
-Normal mode, and Sustain mode, selected by switch.
-frequency adjustment of the internal XOR ringmod.
-classic roland sounding transistor based VCA.

Why get this module over the Shimm module, or other high hats modules?

-Ease of use, ready to go. No sound exploring needed.
-Want the classic transistor based, crunchy sound.
-lower budget
-Sits very well in the drum mix.

Dimensions
8 HP
32 mm deep

Current Draw
21 mA +12V
13 mA -12V

Notes: The uSUBOCTAVE adds pulse waves one and two octaves below the input signal.

The suboctave signals can be mixed to the orgininal signals with two knobs; additionally, the single suboctave signals are available separately at two outputs.

Please note: These micro modules need a carrier, like the uBASE module. They cannot be mounted directly into an AE case.

Notes: The Mankato Filter is a four-pole lowpass filter with positive and negative outputs at every pole, giving you slopes of 6 dB/oct, 12 dB/oct, 18 dB/oct, and 24 dB/oct simultaneously. The negative slope outputs allow you to use the Mankato as a quadrature sine oscillator with 8 available phases. The Mankato will self-resonate from subaudio to superaudio, and responds to one volt per octave through its unattenuated control inputs. When resonating, the 6dB/oct outputs are slightly hotter than the others and can be driven to lightly saturate at full resonance. The signal inputs are DC coupled, which allows you to use the Mankato as a voltage-controlled slew limiter at very low cutoff frequencies.

Notes: Analogue goodness awaits with the four-pole Low Pass Filter. Thanks to CV control over resonance and frequency, the Low Pass Filter can go from squelching leads to dynamic sweeps in an instant. In addition, 1V/Oct tracking allows it to double as a musical sine wave oscillator. Bring analog warmth to your system today in a compact, yet stand out package.

Tech Specs:
Width: 14HP
Depth: 38mm
Front Panel: Intellijel format, Pulp Logic replacement panels available here.

Notes: The Morphor VCO is a compact yet powerful analogue oscillator designed to be the foundation of your Eurorack system. Built around the legendary 3340 architecture, it delivers the clean, precise waveforms that have shaped countless classic synth sounds.

Despite its slim 6HP footprint, the Morphor VCO packs a versatile feature set. It offers four dedicated outputsisquare, saw, triangle, and sineiproviding a rich palette of tones. Pitch control is precise and stable across the entire audible range, with fine-tuning via a tune knob, CV input, and an attenuated FM control for added modulation flexibility.

A three-position octave switch, hard sync input, and pulse-width modulation (PWM) round out the module, making it a reliable and expressive sound source for any patch. Whether you're crafting deep basses, soaring leads, or complex FM textures, the Morphor VCO is ready to deliver.

Features

100% analogue
4 dedicated outputs
Trangle/Sine/Square/Saw
3-position octave switch
FM
PWM
Hard-Sync

Specifications

Panel width: 6 HP
Panel height: 3 U
Module depth: 25 mm
Dimensions: 128.5 x 30.3 x 25 mm
Mass: 111 g
Power Socket: 16-pin

Current draw:
12 V: 26 mA
-12 V: 23 mA
+5 V: 0 mA

Notes: Analogue discrete Synthvoice with two VCOs, three SUB-VCOs, Wavefolder, Noise, Ring Modulator, two loopable ADRS, two LFOs/VCOs, MIXER, 24db Lowpass VCF, VCAOur new Eurorack flagship hits stores this summer. Very compact (pre-patched) discrete synth voice module with excellent analogue technology for endless soundscapes at a reasonable price.

Two discrete VCOs with highly stable tracking

Three analogue Suboscillators (3/4-1/2-1/4 with SQUARE, SAW, TRI) + Gravity Mix -Sync

Wavefolder (VCO 1 TRI WAVE)

White Noise

XOR Ringmodulator

Discrete VCA

24dB LP VCF with overdrive

Dual analogue LFO (one also usable as VCO) with incredible range and keytracking -Two superfast and punchy analog ADSR sections with LOOP function and four TRG outputs (End of ATT, End of DEC)

Mixer section with Master level -Glide presets and huge Patchfield to communicate with other Eurorack Modules.

Screwed metal shaft potentiometer

Rackspace: 36TE
Depth: 25mm

Notes: Introducing SUM0, a voltage-controlled oscillator with expanded harmonic possibilities, in a Eurorack format.

The 4 classic waveforms are generated by a meticulously designed oscillation engine.

You can modulate its frequency and its pulse width thanks to its integrated LFO, capable of reaching audible frequencies to achieve expressive modulations with the simple touch of a switch.

Expand the voice of your system by creating complex waveforms and high harmonic content thanks to its output mixer. This mixer also has an input to integrate an external signal to the mix output.

Of course, all its parameters (FM, PWM, SYNC, V/OCT) are at your fingertips through its patch points on the front panel.

And of course, assembled with a load of passion in Bocuma's studio-workshop in Guadalajara.

Nerdy-specs:

22HP
+12V > 12mA -12V > 12mA

Notes: ***B-STOCK: Box opened, but product is in excellent condition and in perfect working order***


Introducing SUM0, a voltage-controlled oscillator with expanded harmonic possibilities, in a Eurorack format.

The 4 classic waveforms are generated by a meticulously designed oscillation engine.

You can modulate its frequency and its pulse width thanks to its integrated LFO, capable of reaching audible frequencies to achieve expressive modulations with the simple touch of a switch.

Expand the voice of your system by creating complex waveforms and high harmonic content thanks to its output mixer. This mixer also has an input to integrate an external signal to the mix output.

Of course, all its parameters (FM, PWM, SYNC, V/OCT) are at your fingertips through its patch points on the front panel.

And of course, assembled with a load of passion in Bocuma's studio-workshop in Guadalajara.

Nerdy-specs:

22HP
+12V > 12mA -12V > 12mA

Notes: Mûmack is built from a temperature-stabilized analog source producing the three classic waveforms: triangle, saw, rectangle. This basic signal can be altered or enriched in several ways, which can be combined with each other, and associated with one VCA per mode.

Peak Compressor:
In the central position the signal is not modified. Turning the potentiometer to the right or to the left will compress the signal positively or negatively. It is this signal that will then feed Usual, Mûm and Hack. An LFO is dedicated to the compressor, controllable in speed and amplitude. A CV input with attenuator can also control the compressor.

USUAL:
The three waveforms are freely mixable, a CV input and a potentiometer can change the shape of the rectangle wave (PWM). The compressor intervening upstream, it can strongly influence the final form and the amplitude of USUAL. This produces complex analog waveforms, moving in time with the LFO or the CV input. The linear potentiometer makes it possible to mix the signal with the others, and to dose the volume of the direct output. The rotary potentiometer acts as an attenuator for the VCA input.

MÛM:
The Waveform potentiometer move the waveform of Mûm continuously from a attenuated triangle to a more pronounced triangle, then to a sinusoid and finally to a square wave. An LFO allows you to add a vibrato adjustable in speed and amplitude. The linear potentiometer makes it possible to mix the signal with the others, and to dose the volume of the direct output. The rotary potentiometer acts as an attenuator for the VCA input.

HACK:
Mûm's signal is taken up in a Wavefolder + compressor. Depending on the settings of the Peak compressor, and the three LFOs, we obtain complex, moving, organic waveforms. Again the linear potentiometer allows to mix the signal with the others, and to adjust the volume of the direct output. The rotary potentiometer acts as an attenuator for the VCA input.

ALL:
The three channel (Usual, Mûm, Hack) are mixed and brought together in a single output. The output volume is adjustable and a CV input with attenuator works like a VCA.

MIXER & VCA
The voltages produced by Mûmack, as is the case with many analog VCOs, can be high. The mixer allows them to be attenuated if necessary. Each of the three channels, and the product of the three, can be controlled by the VCA, with attenuator. The VCA is designed to add distortion at high values. The mixer is exponential for more subtle adjustments in low values.

Dimensions
30 HP
40 mm deep

Current Draw
155 mA +12V
155 mA -12V
0 mA 5V

Notes: The SetonixSynth SkyWave is an all-analogue voltage controlled oscillator capable of producing many different timbres and unique harmonic behaviours, thanks to an original step-based control scheme which allows the user to dial in completely different wave-shapes and levels for successive oscillator cycles.

This complex VCO uses an internal feedback loop with the clock output of the oscillator triggering a step sequencer which in turn cycles through settings at the frequency of the core oscillator, thus changing the shape and level of the waveform output on a per-cycle basis while also staying in tune and tracking pitch like a typical VCO.

Notes: T-generator takes the concept of merging modulation sources and destinations into a single module.

T-generator is a multi-parameter Thru-Zero FM VCO. Main outputs are a pure sine wave with its warm sounding harmonically rich wavefolder, a triangle and a morphable square oscillator.

Four independent lightstrips engines controlling four sound sculpting parameters

Bring life to your patches with free running or resettable custom drawn modulations.

Maximum automation recording length of 20s for each parameter.

V/Oct, Thru-Zero FM, PWM and FOLD modulation inputs.

Along with Pulse Width, Fold and Saw morphing, you can play with its Vibrato parameter that will generate a wide palette of effects, starting from subtle vibrato to chaotic frequency modulation.

The integrated touch lightstrip controllers can drive four parameters with looping or one-shot recording playback mode on each track with global RESET input.

Current draw: 150 mA (+12 V) / 20 mA (-12 V)
Width: 8 HP
Depth: 34 mm

Notes: Ripsaw is a 6hp stereo super saw/square oscillator just like chainsaw with a few extra additions:

- 4x voices of 7 detunable saw/square waves to allow for more complex chords

- unique "display" built from 77 blue LEDs

- manual and CV control over wave shape and spread like chainsaw

- a new "shift" parameter that offsets the frequency of a second oscillator that hard syncs each waveform for a unique "supersync" sound

- waves panned across stereo outputs like chainsaw

- fine tune adjustment and optional onboard semitone quantization selectable on the encoder/display

Notes: Dizygote is an A-side/B-side digital oscillator with a built-in envelope generator. The A-side builds harmonies with a square waveform and frequency modulation. the b-side distorts a sine waveform with phase modulation.

Inputs:

Trig - button and gate in to trigger oscillator amplitude envelopes
Switch - button and gate in for toggling between the a and b sides
Length - knob and CV in for changing the envelope length
Mod - knob and CV in for changing the phase and fm modulation amounts
Mfreq - knob and CV in for changing the phase and fm modulation frequencies
Freq - knob for setting the oscillator frequency
V/oct - voltage per octave CV for modulating the oscillator frequency

Outputs:

Out L and out R - audio output
Env - CV envelope out

Notes: Oscar DSF is a complex, stereo Voltage Controlled Oscillator, based on the mathematics of Discrete Summation Formulae.

The Discrete Summation Formula used in Oscar DSF produces sounds rich in harmonics (or 'partials') in a similar way to FM.

The mathematics of DSFs is more complex than FM, but the way that you, the user, get the sounds you want is usually simpler. The basic sound is controlled by just two, intuitive knobs (with CVs, of course).

Oscar DSF can sound like a traditional oscillator, and it can make the usual clangs and tings associated with FM oscillators. It can handle fat bass sounds, or evolving ambient drones.

Oscar DSF has two complete DSF based, complex oscillators, controlled by the same basic pitch CV, but with a pitch offset control which can detune one oscillator up to i1 octave.

The output of the each oscillator passes through another complex FM stage, which acts like a wave folder. Technically, it's actually an FM operator with the carrier frequency set to zero. It sounds great, whatever you call it.

The final piece of the signal chain is a simple VCA, allowing Oscar DSF to be used as a stand alone synth voice with the addition of an envelope generator, or some other source of modulation.

Specifications:

Width: 10HP
Depth: 22mm excl. power cable. Approx 32mm inc. shrouded power cable
Power Requirements:
+12v: 200mA
-12v: 50mA
+5v: 0mA

Inputs:

VPO (Zero attenuation): 1 volt per octave
PAR CV[Zero attenuation]: +/-5v nominal
FOLD CV [Zero attenuation]: +/-5v nominal
PAN CV [Zero attenuation]: +/-5v nominal

Outputs:
Dual/Stereo: +/-5v nominal, +/-11v max

Notes: Swarm is a hyper-oscillator capable of an array of patch-filling sounds. Create super-saws, tonal noise hurricanes, and thick bass and lead lines.

Swarm is comprised of a large set of oscillators (up to 88 voices!). Control the number of available oscillators with the Voices control, and dial in the desired amount of pitch variance across the voices with detune. Take Swarm's oscillators from a rich thickening of sound to atonal chaos in the turn of a knob! Swarm also provides macro pitch control with the Freq knob, which also tracks 1v/oct through its CV input. A waveform toggle is also available for switching between sawtooth and pulse waveforms, expanding the timbral palette Swarm offers! Design pumping trance leads, minimoog style basslines, and more with Swarm!

Tech Specs: Width: 2HP, Depth: 45mm, Power Consumption: +12V=82mA -12V=4ma +5V=0mA