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


Black version of AJH's random voltage generator, based on the ultra-rare 1970s EMS RVG. Complex, triggerable modulation source with multiple outputs and full CV control.

Supplier's Notes:
The Random Voltage Event Generator (RVG) is a faithful replica of the vintage EMS Random Voltage Generator. It produces random voltages which vary smoothly or in a step-wise manner. Random timing pulses are also available. The rate of change of all outputs is voltage controllable over a wide range.

Just like the original RVG it uses four unijunction transistors - three of them are configured as ramp and hold generators and the fourth is an LFO. It produces two separate random voltages but also the clock time between pulses can be randomised.

The module offers some extra features: it is possible to add a bias voltage to either of the random voltage outputs, and also add slew to Voltage 1. There is a CV control of the LFO frequency and clock speed as well as CV control of the Time variance.

The internal LFO can be tapped thanks to dedicated outputs for both sawtooth and triangle waveforms, and the waveform shape follows the time variance. The internal clock can be started using an external gate or with the help of the manual trigger button that works when the clock is stopped.

The TR-IN input allows an external clock to be used instead of the internal LFO. There is also a gate output, the gate length changes in proportion with the time variance, and the duty cycle of the gate can be varied from 1% to 99%.

*limited edition!

Module Width: 14hp

Module Depth: 26mm (Including power lead)

Current Usage: 95mA Positive, 70mA Negative

Notes: Black version of AJH's random voltage generator, based on the ultra-rare 1970s EMS RVG. Complex, triggerable modulation source with multiple outputs and full CV control.

Supplier's Notes:
The Random Voltage Event Generator (RVG) is a faithful replica of the vintage EMS Random Voltage Generator. It produces random voltages which vary smoothly or in a step-wise manner. Random timing pulses are also available. The rate of change of all outputs is voltage controllable over a wide range.

Just like the original RVG it uses four unijunction transistors - three of them are configured as ramp and hold generators and the fourth is an LFO. It produces two separate random voltages but also the clock time between pulses can be randomised.

The module offers some extra features: it is possible to add a bias voltage to either of the random voltage outputs, and also add slew to Voltage 1. There is a CV control of the LFO frequency and clock speed as well as CV control of the Time variance.

The internal LFO can be tapped thanks to dedicated outputs for both sawtooth and triangle waveforms, and the waveform shape follows the time variance. The internal clock can be started using an external gate or with the help of the manual trigger button that works when the clock is stopped.

The TR-IN input allows an external clock to be used instead of the internal LFO. There is also a gate output, the gate length changes in proportion with the time variance, and the duty cycle of the gate can be varied from 1% to 99%.

*limited edition!

Module Width: 14hp

Module Depth: 26mm (Including power lead)

Current Usage: 95mA Positive, 70mA Negative

Notes: Really clever noise-based oscillator from AJH. Drones, sweeps and bleeps aplenty, ranging from tamed to out-of-control filth. Also doubles up as a more conventional ring mod and distortion module.

Supplier's notes:
This 14HP wide module is a voltage controlled noise based oscillator, or noisillator for short. It generates 1/f noise and this is then sent through a feedback loop which allows the noise to be "tuned" to varying degrees depending on the settings of the frequency and resonance controls, or incoming frequency or resonance CV's. The tuned circuit can be FM modulated too, for some thunderous sweeping sounds. We have bright and dark outputs, which are pre and post filter respectively. The Bright output will always have a degree of noise present in the signal, whereas the Dark output can be tuned noise only when 4 pole resonance is selected. We also have an external Sync input, which will reset the resonant waveform, and we also have an Audio input, so that an external signal can be mixed into the resonant loop. Combinations of external waveforms to these two inputs can create some massive drone sounds, or sweeping sync sounds.

There is also an XOR ring modulator, which can be used as a module in its own right too. Lastly, we have an XOR amplifier, which is another independant circuit that can be used to add noise and distortion to any audio signal.

Notes: Truly unique one from AJH, based on the sound of NASA's Apollo voice transmissions. Think outside the box and process drums and synths through this thing. Freaky. May or may not allow you to communicate with real astronauts.

Supplier's notes:
Here's a bit of fun for all fans of space missions from the previous century! This module is designed to re-create the ground to space and space to ground transissions from the Apollo era.

To be "Mission Control Houston" the Quindar PTT (push to talk) button adds a short 2,525Hz Qindar tone to the start of the transission, then at the end of the message the PTT button or switch is released and a short 2,475Hz Quindar tone is added to the audio. The bandwidth is slightly reduced in this mode.

For "Astronaut comms" we press the Capsule PTT switch, which allows us to add coloured noise, distortion, bandwidth reduction and either hum or LGM (Little green men space tone) noise to the audio signal. A deep space electret condenser mic is supplied and an be used with the MIC input.

Obviously the Lunar Module can also be used to add noise, hum, distortion, bandwidth reduction and LGM noise tone to any modular level audio too, and if the mic is left attached theremin like sounds can be added too with careful loudspeaker feedback.

Notes: AJH Synth have had quite a few requests for a variant of MiniMod contour generator with Release added to the envelope so that it is full ADSR but still with the characteristics of the Model D - so this is what they have done!

The DH-ADSR is exactly the same circuit as the original Model D envelope and therefore features the same contour shape and retrigger behaviour, but with the addition of a release control. However, they have also added a pulse delay and pulse stretch circuit, along with a re-trigger facility (both of these can be switched out of circuit so that the envelope is a simple ADSR unit).

The addition of pulse stretching and retrigger makes it into an LFO module and it can perform in a similar way to the EMS Synthi A and VCS3 Trapezoid generator, with a variable delay between each trigger and a variable "on" time - however it can also have full ADSR envelope on each retrigger too!

Notable Features:

- PREDELAY - This control determines how long (up to 10 seconds) the start of the envelope is held off, after a gate is received. This ability to delay the onset of the envelope is especially useful when used in conjunction with a standard ADSR: With both envelopes receiving the gate simultaneously complex envelopes can be produced as the DH-ADSR only starts running through its stages after the standard ADSR has completed. Once their outputs are mixed together in a mixer a single evolving envelope with multiple stages is produced!

- Use of the bipolar mixer found in the MINIMOD CV MIX-OFFSET-VCA module can enhance this technique even further, with more precise control over the polarity/offset of the envelope mix possible. Using the VCA of this module could allow for external modulation over either/both of the signals. It goes on...

- HOLD - When in Del-Hold mode (switch down) the HOLD control determines the gate length applied to the envelope, and thus controlling its length/overall shape. When the switch is up, normal ADSR action is produced.

- RETRIG - In this mode the DH-ADSR becomes an LFO, which can mimic the "Trapezoid" function of the vintage EMS designs. HOLD controls the length of the trapezoid shape, and PREDELAY allows for adjustable gaps between each repeat of the shape produced.to an LFO module and it can perform in a similar way to the EMS Synthi A and VCS3 Trapezoid generator, with a variable delay between each trigger and a variable "on" time - however it can also have full ADSR envelope on each retrigger too!

Notes: This has two LFOs, each with variable waveshape from Saw to Triangle to Ramp waveforms, or variable Pulse width on the Square wave output. LFO 1 has the addition of a low range and a Sync input. The nominal maximum frequency of the LFOs when in Triangle shape is 20Hz, but under certain combinations of settings they will go much higher, well into audio range.

Also included is a DC coupled VCA, the input of the VCA is normalised to the output of LFO 2, so a 0 to +5V input to the VCA CV input gives control of the LFO waveform amplitude. It can also be used as a stand alone VCA.

This module is very useful for controllers such as the Waldorf KB37 where the modulation wheel gives out 0 to +5V, this can be routed to the VCA CV module so the level of the modulation waveform can be easily controlled. This makes it very easy to add VCO vibrato or filter 'wah' with control of modulation amount from the modulation wheel or other controller.

Notes: A real powerhouse module that takes up only 12 HP of rack space. It can generate random and pseudo random control voltages, staircase waveforms, deliberate aliasing of audio signals, portamento type effects, adjustable audio range noise and has many other uses too.

It can be switched between Sample & Hold or Track & Hold modes, and the unique "Restrict" control affects the way the hold output changes with respect to the current input level and previously held output level. With the control fully off the unit behaves just like any other S/H, but at fully clockwise the output is restricted to move by only a small amount after each new sample. The output will still have the same range as the input, but will need more hold commands to get there. This versatile Sample and Hold circuit was designed by Tony Allgood, and is built under licence from Oakley Sound.

The Sample Hold & Slew module also includes a very well featured Slew generator, which includes a Gated Slew function. It can be used independently or chained with the S&H module. Slew mode can be switched between Linear or Exponential Slew types. There is a Gate input, so that the Slew on/off can be switched using an External CV (Gated Slew), and also the Slew control logic can be reversed by a toggle switch that doubles as a manual Slew on/off switch. In addition, it has slew up only, slew down only or slew up and down modes, which are selected with a three-way toggle switch. An indicator LED lights when Slew is active

There is also an inbuilt analogue Noise generator, which is normalised to the input of the Sample and Hold section, and there are both regular and clipped Noise outputs - the Clipped Noise is particularly useful with the sample and hold section, as it is weighted to produce higher random voltages. Both Noise outputs are fed through an internal "Noise Colour" control - at centre position it allows the noise through unfiltered, turning the control anti-clockwise introduces low pass filtering of the Noise, and rotating it clockwise introduces high pass filtering. The Noise source itself is based on an analogue band gap shunt regulator configured in avalanche mode, and it generates white noise with a gradual roll off above 8kHz. It is a little "grainier" in character than the noise from our MiniMod Glide & Noise module (which uses a reverse biased transistor as a noise source), so is a useful compliment to this module as it does not generate exactly the same sounding Noise

Lastly, it includes a wide range clock generator with a rate LED. The range is from one cycle every thirty seconds to around 2 kHz and the clock output is normalised to the Clock Input of the S&H section. It also has a Clock Out jack so that it can be externally patched to other Eurorack modules.

Notes: AJH Synth have had quite a few requests for a variant of MiniMod contour generator with Release added to the envelope so that it is full ADSR but still with the characteristics of the Model D - so this is what they have done!

The DH-ADSR is exactly the same circuit as the original Model D envelope and therefore features the same contour shape and retrigger behaviour, but with the addition of a release control. However, they have also added a pulse delay and pulse stretch circuit, along with a re-trigger facility (both of these can be switched out of circuit so that the envelope is a simple ADSR unit).

The addition of pulse stretching and retrigger makes it into an LFO module and it can perform in a similar way to the EMS Synthi A and VCS3 Trapezoid generator, with a variable delay between each trigger and a variable "on" time - however it can also have full ADSR envelope on each retrigger too!

Notable Features:

- PREDELAY - This control determines how long (up to 10 seconds) the start of the envelope is held off, after a gate is received. This ability to delay the onset of the envelope is especially useful when used in conjunction with a standard ADSR: With both envelopes receiving the gate simultaneously complex envelopes can be produced as the DH-ADSR only starts running through its stages after the standard ADSR has completed. Once their outputs are mixed together in a mixer a single evolving envelope with multiple stages is produced!

- Use of the bipolar mixer found in the MINIMOD CV MIX-OFFSET-VCA module can enhance this technique even further, with more precise control over the polarity/offset of the envelope mix possible. Using the VCA of this module could allow for external modulation over either/both of the signals. It goes on...

- HOLD - When in Del-Hold mode (switch down) the HOLD control determines the gate length applied to the envelope, and thus controlling its length/overall shape. When the switch is up, normal ADSR action is produced.

- RETRIG - In this mode the DH-ADSR becomes an LFO, which can mimic the "Trapezoid" function of the vintage EMS designs. HOLD controls the length of the trapezoid shape, and PREDELAY allows for adjustable gaps between each repeat of the shape produced.

Notes: Two independent Contour Envelope Generators in a single 12hp wide Eurorack module. These are very accurate replicas of the Model D contour generators, with identical circuitry and component values running on the correct +9.3V and -10v supply voltages of the original; so they exactly replicate the original envelope response along with all of it eccentricities. Extra features include manual trigger buttons and envelope status LED's.

The contour generators played a larger part in the sound of the Model D than many people realise. There are two factors that make them unique, firstly the exponential slope when is used in conjunction with the (near) linear slope of the original VCA which is responsible for the famous Model D "punch". Secondly, the re-trigger behaviour is quite unique, multiple retriggering increases the output level so that either the volume increases incrementally, or the filter opens incrementally with each extra key press.

AJH Synth have added independent Decay switches for each individual Contour Generator rather than the shared switch on the original synthesiser, these switches change the Contour response from AD (switch up) to ADSD mode (switch down).

Notes: This has two LFOs, each with variable waveshape from Saw to Triangle to Ramp waveforms, or variable Pulse width on the Square wave output. LFO 1 has the addition of a low range and a Sync input. The nominal maximum frequency of the LFOs when in Triangle shape is 20Hz, but under certain combinations of settings they will go much higher, well into audio range.

Also included is a DC coupled VCA, the input of the VCA is normalised to the output of LFO 2, so a 0 to +5V input to the VCA CV input gives control of the LFO waveform amplitude. It can also be used as a stand alone VCA.

This module is very useful for controllers such as the Waldorf KB37 where the modulation wheel gives out 0 to +5V, this can be routed to the VCA CV module so the level of the modulation waveform can be easily controlled. This makes it very easy to add VCO vibrato or filter 'wah' with control of modulation amount from the modulation wheel or other controller.

Notes: Another excellent offering from AJH's Minimoog-inspired MiniMod series. Generating bursts of repeating envelopes, the Multi Burst is like a twist on classic LFO modulation. Versatile.

Supplier's Notes:
The MiniMod Multi Burst Envelopes module generates variable length bursts of repeating envelopes that can change over time, with CV control of all functions.

The BURSTS control selects a "Burst Sequence" of between 1 and 40 individual envelopes. The envelope shape of a burst is chosen with the rotary switch, or it can be varied using an external CV, so that it is even possible to chose a different envelope shape for each individual burst in a sequence.

The width of the envelope (i.e. the attack and decay time) is varied with the P-WIDTH control and this can also be CV controlled as a sequence is progressing, so it is possible to vary the envelope speed of each individual envelope burst while a Burst Sequence is running.

The repeat time of individual bursts in a Burst Sequence is set with the LFO Rate control. The LFO rate can be varied with an external CV as a sequence is progressing, so the gap between envelopes can speed up or slow down over time. An external clock can also time the bursts in a burst sequence instead of, or in addition to the internal LFO. Bursts can also be manually incremented with the CLK push button.

The SLOPE control allows Bursts to start quietly and build in level to maximum, or they can start at full level and then reduce in level as the Burst Sequence progresses. In the centre position all Bursts are of equal level.

Specifications

Module Width: 12hp
Module Depth: 26mm (Including power lead)
Current Usage: 28mA Positive, 12mA Negative
Individual Envelope Length: 20msecs to 2.5 seconds
Internal clock rate: Off, 0.24Hz to 51Hz, or every 4.2 seconds to every 20msecs
Envelope waveshapeS: Sine, LogDown, LogUp, ExpoDown, RampUp, Triangle, RampDown, Pulse
Repeats: 1 to 40
Slope: bipolar, sloping up from 4%->100%, and sloping down from 100%->4%

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


Another excellent offering from AJH's Minimoog-inspired MiniMod series. Generating bursts of repeating envelopes, the Multi Burst is like a twist on classic LFO modulation. Versatile.

Supplier's Notes:
The MiniMod Multi Burst Envelopes module generates variable length bursts of repeating envelopes that can change over time, with CV control of all functions.

The BURSTS control selects a "Burst Sequence" of between 1 and 40 individual envelopes. The envelope shape of a burst is chosen with the rotary switch, or it can be varied using an external CV, so that it is even possible to chose a different envelope shape for each individual burst in a sequence.

The width of the envelope (i.e. the attack and decay time) is varied with the P-WIDTH control and this can also be CV controlled as a sequence is progressing, so it is possible to vary the envelope speed of each individual envelope burst while a Burst Sequence is running.

The repeat time of individual bursts in a Burst Sequence is set with the LFO Rate control. The LFO rate can be varied with an external CV as a sequence is progressing, so the gap between envelopes can speed up or slow down over time. An external clock can also time the bursts in a burst sequence instead of, or in addition to the internal LFO. Bursts can also be manually incremented with the CLK push button.

The SLOPE control allows Bursts to start quietly and build in level to maximum, or they can start at full level and then reduce in level as the Burst Sequence progresses. In the centre position all Bursts are of equal level.

Specifications

Module Width: 12hp
Module Depth: 26mm (Including power lead)
Current Usage: 28mA Positive, 12mA Negative
Individual Envelope Length: 20msecs to 2.5 seconds
Internal clock rate: Off, 0.24Hz to 51Hz, or every 4.2 seconds to every 20msecs
Envelope waveshapeS: Sine, LogDown, LogUp, ExpoDown, RampUp, Triangle, RampDown, Pulse
Repeats: 1 to 40
Slope: bipolar, sloping up from 4%->100%, and sloping down from 100%->4%

Notes: The MiniMod Multi Burst Envelopes module generates variable length bursts of repeating envelopes that can change over time, with CV control of all functions.

The BURSTS control selects a "Burst Sequence" of between 1 and 40 individual envelopes. The envelope shape of a burst is chosen with the rotary switch, or it can be varied using an external CV, so that it is even possible to chose a different envelope shape for each individual burst in a sequence.

The width of the envelope (i.e. the attack and decay time) is varied with the P-WIDTH control and this can also be CV controlled as a sequence is progressing, so it is possible to vary the envelope speed of each individual envelope burst while a Burst Sequence is running.

The repeat time of individual bursts in a Burst Sequence is set with the LFO Rate control. The LFO rate can be varied with an external CV as a sequence is progressing, so the gap between envelopes can speed up or slow down over time. An external clock can also time the bursts in a burst sequence instead of, or in addition to the internal LFO. Bursts can also be manually incremented with the CLK push button.

The SLOPE control allows Bursts to start quietly and build in level to maximum, or they can start at full level and then reduce in level as the Burst Sequence progresses. In the centre position all Bursts are of equal level.

Specifications

Module Width: 12hp
Module Depth: 26mm (Including power lead)
Current Usage: 28mA Positive, 12mA Negative
Individual Envelope Length: 20msecs to 2.5 seconds
Internal clock rate: Off, 0.24Hz to 51Hz, or every 4.2 seconds to every 20msecs
Envelope waveshapes: Sine, LogDown, LogUp, ExpoDown, RampUp, Triangle, RampDown, Pulse
Repeats: 1 to 40
Slope: bipolar, sloping up from 4%->100%, and sloping down from 100%->4%

Notes: ***B-STOCK: Box damaged, product in perfect working order***


The MiniMod Multi Burst Envelopes module generates variable length bursts of repeating envelopes that can change over time, with CV control of all functions.

The BURSTS control selects a "Burst Sequence" of between 1 and 40 individual envelopes. The envelope shape of a burst is chosen with the rotary switch, or it can be varied using an external CV, so that it is even possible to chose a different envelope shape for each individual burst in a sequence.

The width of the envelope (i.e. the attack and decay time) is varied with the P-WIDTH control and this can also be CV controlled as a sequence is progressing, so it is possible to vary the envelope speed of each individual envelope burst while a Burst Sequence is running.

The repeat time of individual bursts in a Burst Sequence is set with the LFO Rate control. The LFO rate can be varied with an external CV as a sequence is progressing, so the gap between envelopes can speed up or slow down over time. An external clock can also time the bursts in a burst sequence instead of, or in addition to the internal LFO. Bursts can also be manually incremented with the CLK push button.

The SLOPE control allows Bursts to start quietly and build in level to maximum, or they can start at full level and then reduce in level as the Burst Sequence progresses. In the centre position all Bursts are of equal level.

Specifications

Module Width: 12hp
Module Depth: 26mm (Including power lead)
Current Usage: 28mA Positive, 12mA Negative
Individual Envelope Length: 20msecs to 2.5 seconds
Internal clock rate: Off, 0.24Hz to 51Hz, or every 4.2 seconds to every 20msecs
Envelope waveshapes: Sine, LogDown, LogUp, ExpoDown, RampUp, Triangle, RampDown, Pulse
Repeats: 1 to 40
Slope: bipolar, sloping up from 4%->100%, and sloping down from 100%->4%

Notes: Five-channel mixer with mutes, built-in VCA, switchable overdrive and LED level meter. Simple, straightforward, high-quality stuff from AJH.

Supplier's Notes:
The MiniMod Muting Mixer & VCA is a 10HP wide, five channel audio mixer with many useful features. It is available with either a black (Dark Edition), or a silver front panel.

The mixer section has five input channels, and each channel includes a bi-colour tactile LED switch that can instantly mute or un-mute the channel, replicating the oscillator on/off switches on the original Model D synthesiser. This arrangement is more convenient than regular switches as each illuminated switch shows the on/off status of the associated channel and multiple buttons can be pressed at once, making it very useful for live performance.

AJH have also included a four segment LED level meter so that the overall level can be seen at a glance and adjusted to prevent the output from getting too "hot" and causing distortion in other modules further downstream.

It also features a VCA that is integrated into the output section, and this can be switched from linear to exponential response - this allows it to be used as a voltage controlled sub mixer or as a stand alone VCA with five inputs.

Lastly, AJH added a wonderfully soft and warm sounding overdrive circuit that can be switched in to add smooth, tube like distortion. This works in a similar fashion to a master volume guitar amplifier, so the amount of overdrive can be varied widely with different settings of channel and master output levels.

Module Width: 10hp
Module Depth: 26mm (Including power lead)
Current Usage: 55mA Positive, 25mA Negative

Notes: Sometimes real precision is required with pitch control voltages - this module features a super accurate "Cal" output, which is accurate to <1mV over 20V, translates to one cent over 20 octaves! It is ideal for calibrating the scaling of VCO's, indeed we have been using our own version of this circuit to calibrate our own MiniMod VCO's for the last three years.

As well as being a precision voltage source it is also a very accurate voltage adder, it has two channels (A & B) and both full volts (octaves) or 1/12th volt increments (notes) can be either added to or subtracted from the incoming signal. Perfect for adding a voltage offset to the output of a sequencer or it can be used to add switchable octaves to a VCO which only has course and fine tunes controls.

It also has a "mix" output, which allows either A channel on its own, or with the three way toggle switch channel B can either be added to, or subtracted from channel B, and this is in addition to the addition and subtraction per channel mentioned earlier.

Dimensions: 10HP wide, 26mm Deep

Notes: A real powerhouse module that takes up only 12 HP of rack space. It can generate random and pseudo random control voltages, staircase waveforms, deliberate aliasing of audio signals, portamento type effects, adjustable audio range noise and has many other uses too.

It can be switched between Sample & Hold or Track & Hold modes, and the unique "Restrict" control affects the way the hold output changes with respect to the current input level and previously held output level. With the control fully off the unit behaves just like any other S/H, but at fully clockwise the output is restricted to move by only a small amount after each new sample. The output will still have the same range as the input, but will need more hold commands to get there. This versatile Sample and Hold circuit was designed by Tony Allgood, and is built under licence from Oakley Sound.

The Sample Hold & Slew module also includes a very well featured Slew generator, which includes a Gated Slew function. It can be used independently or chained with the S&H module. Slew mode can be switched between Linear or Exponential Slew types. There is a Gate input, so that the Slew on/off can be switched using an External CV (Gated Slew), and also the Slew control logic can be reversed by a toggle switch that doubles as a manual Slew on/off switch. In addition, it has slew up only, slew down only or slew up and down modes, which are selected with a three-way toggle switch. An indicator LED lights when Slew is active

There is also an inbuilt analogue Noise generator, which is normalised to the input of the Sample and Hold section, and there are both regular and clipped Noise outputs - the Clipped Noise is particularly useful with the sample and hold section, as it is weighted to produce higher random voltages. Both Noise outputs are fed through an internal "Noise Colour" control - at centre position it allows the noise through unfiltered, turning the control anti-clockwise introduces low pass filtering of the Noise, and rotating it clockwise introduces high pass filtering. The Noise source itself is based on an analogue band gap shunt regulator configured in avalanche mode, and it generates white noise with a gradual roll off above 8kHz. It is a little "grainier" in character than the noise from our MiniMod Glide & Noise module (which uses a reverse biased transistor as a noise source), so is a useful compliment to this module as it does not generate exactly the same sounding Noise

Lastly, it includes a wide range clock generator with a rate LED. The range is from one cycle every thirty seconds to around 2 kHz and the clock output is normalised to the Clock Input of the S&H section. It also has a Clock Out jack so that it can be externally patched to other Eurorack modules.
Dimensions: 12HP wide, 26mm Deep
Current draw: 55mA Positive, 40mA Negative

Notes: Ultra-versatile LFO module with tap tempo, internal/external clock support, 16 different waveforms and a clever Waveform Twist option, allowing a PWM-style effect.

Supplier's Notes:
The MiniMod Tap Tempo VC-LFO is a 12HP wide LFO with a huge range of useful features including Tap Tempo and internal / external clock control.

Sixteen different waveforms are available over two banks and an eight way rotary switch and Bank switch allow easy waveform selection.

The unique Waveform Twist function allows PWM like duty cycle variation to be applied to fifteen of the waveforms.

CV controllable multiply function - with this we can double, treble, quadruple or half the LFO rate, so that we can vary the modulation frequency but still keep it relative to the tempo of the track.

Large modulation range from 0.05Hz (one cycle every 20 seconds) to 50Hz

Random stepped voltages (similar to S&H) and also a very useful random sloped voltage outputs are also available.

Voltage control is implemented for all functions, including waveform selection and exponential control of modulation frequency

Bipolar and Unipolar outputs are available simultaneously and the built in VCA allows easy control of the modulation level of both outputs.

Module Width: 12hp
Module Depth: 26mm (Including power lead)
Current Usage: 35mA Positive, 25mA Negative

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


Ultra-versatile LFO module with tap tempo, internal/external clock support, 16 different waveforms and a clever Waveform Twist option, allowing a PWM-style effect.

Supplier's Notes:
The MiniMod Tap Tempo VC-LFO is a 12HP wide LFO with a huge range of useful features including Tap Tempo and internal / external clock control.

Sixteen different waveforms are available over two banks and an eight way rotary switch and Bank switch allow easy waveform selection.

The unique Waveform Twist function allows PWM like duty cycle variation to be applied to fifteen of the waveforms.

CV controllable multiply function - with this we can double, treble, quadruple or half the LFO rate, so that we can vary the modulation frequency but still keep it relative to the tempo of the track.

Large modulation range from 0.05Hz (one cycle every 20 seconds) to 50Hz

Random stepped voltages (similar to S&H) and also a very useful random sloped voltage outputs are also available.

Voltage control is implemented for all functions, including waveform selection and exponential control of modulation frequency

Bipolar and Unipolar outputs are available simultaneously and the built in VCA allows easy control of the modulation level of both outputs.

Module Width: 12hp
Module Depth: 26mm (Including power lead)
Current Usage: 35mA Positive, 25mA Negative

Notes: The MiniMod Tap Tempo VC-LFO is a 12HP wide LFO with a huge range of useful features including Tap Tempo and internal / external clock control.

Sixteen different waveforms are available over two banks and an eight way rotary switch and Bank switch allow easy waveform selection.

The unique Waveform Twist function allows PWM like duty cycle variation to be applied to fifteen of the waveforms.

CV controllable multiply function - with this we can double, treble, quadruple or half the LFO rate, so that we can vary the modulation frequency but still keep it relative to the tempo of the track.

Large modulation range from 0.05Hz (one cycle every 20 seconds) to 50Hz

Random stepped voltages (similar to S&H) and also a very useful random sloped voltage outputs are also available.

Voltage control is implemented for all functions, including waveform selection and exponential control of modulation frequency

Bipolar and Unipolar outputs are available simultaneously and the built in VCA allows easy control of the modulation level of both outputs.

Module Width: 12hp
Module Depth: 26mm (Including power lead)
Current Usage: 35mA Positive, 25mA Negative

Notes: The V-Shape is two modules in one, a wave twister and a distortion/wavefolding module. Both sections of the module are all analogue in design, and both can be used independently, or they can be normalised together in series, so that a waveform can be twisted first and then distorted and wavefolded.

The wave twister can take (for example) a saw tooth waveform as an input and shape it, under manual or external voltage control, through to being a triangle waveform and on to being a ramp waveform, and produces a sound similar to PWM for sawtooths. It will also work with symmetrical waveforms such as triangle and sine waves, again producing PWM like tones.

It can produce a wave twisting effect from most waveforms (with the exception of square waves), whether they are symmetrical or asymmetric. Under many conditions the transfer function is not perfect, so different harmonics may be generated too. The offset control allows a bias to be added to the incoming waveform, either to bias it correctly around zero or offset it for more distortion and harmonics.

The second part of the V-Shape module is a distortion unit, with selectable Soft or Hard Clipping, and the clipping amount can be varied either by a front panel control or an external control voltage with the "Distort" control. The distortion offset control adds or subtracts a bias voltage to the CV signal, to give an extended range of control. There is also a single stage, switchable wavefolder, which can be used with either soft or hard clipped waveforms.

Notes: The WaveSwarm is a waveform animator and all analogue dual channel device.

Each channel simulates up to six VCO's beating in unison with a different beat frequency between each animation. The fixed beat frequencies are generated by twelve onboard LFO's, and the front panel pots control the level of each of the six animators, along with the level of the dry signal to the final mix. In addition to independent channel inputs and outputs it also has an A+B output, which sums the outputs of the two channels, creating an effect similar to twelve VCO's in unison! This is possible because channel B uses slightly different beat frequencies to channel A, they are not identical.

The input waveform can be saw, triangle, sine or wavetable/complex waveforms, in fact most waveforms with the exception of square or PWM waves will give some form of animation.

A soft clip circuit is built in so that at higher signal levels the signal magnitude is limited by rounding the top and bottom of the waveforms, thus slightly softening the sound. There are soft clip LED indicators for both channels.

It can produce huge, fat drones or supersaw type waveforms from a single sawtooth or triangle wave input.

Notes: ***B-STOCK: Box damaged, product in perfect working order***


The WaveSwarm is a waveform animator and all analogue dual channel device.

Each channel simulates up to six VCO's beating in unison with a different beat frequency between each animation. The fixed beat frequencies are generated by twelve onboard LFO's, and the front panel pots control the level of each of the six animators, along with the level of the dry signal to the final mix. In addition to independent channel inputs and outputs it also has an A+B output, which sums the outputs of the two channels, creating an effect similar to twelve VCO's in unison! This is possible because channel B uses slightly different beat frequencies to channel A, they are not identical.

The input waveform can be saw, triangle, sine or wavetable/complex waveforms, in fact most waveforms with the exception of square or PWM waves will give some form of animation.

A soft clip circuit is built in so that at higher signal levels the signal magnitude is limited by rounding the top and bottom of the waveforms, thus slightly softening the sound. There are soft clip LED indicators for both channels.

It can produce huge, fat drones or supersaw type waveforms from a single sawtooth or triangle wave input.

Notes: The WaveSwarm is a waveform animator and all analogue dual channel device.

Each channel simulates up to six VCO's beating in unison with a different beat frequency between each animation. The fixed beat frequencies are generated by twelve onboard LFO's, and the front panel pots control the level of each of the six animators, along with the level of the dry signal to the final mix. In addition to independent channel inputs and outputs it also has an A+B output, which sums the outputs of the two channels, creating an effect similar to twelve VCO's in unison! This is possible because channel B uses slightly different beat frequencies to channel A, they are not identical.

The input waveform can be saw, triangle, sine or wavetable/complex waveforms, in fact most waveforms with the exception of square or PWM waves will give some form of animation.

A soft clip circuit is built in so that at higher signal levels the signal magnitude is limited by rounding the top and bottom of the waveforms, thus slightly softening the sound. There are soft clip LED indicators for both channels.

It can produce huge, fat drones or supersaw type waveforms from a single sawtooth or triangle wave input.

Notes: Pan and cross fade up to three signals with AJH's versatile Triple Cross. Four different modes allow you to set up the three channels in numerous ways, for both audio and CV processing.

Supplier's Notes:
The Tone Science Triple Cross module is a design collaboration between electronic musician/composer Ian Boddy and AJH Synth.

It features three independant cross fader and panner channels, and it can be used with both audio and CV signals. Each of the channels can be configured in one of four different ways:

1) One In, One out Linear VCA

2) Two in, One out crossfader

3) One in, Two out panner,

4) Two in, Two out cross fader & reversing panner combined.

Audio rate modulation can also be used on the CV inputs to create Ring modulation and Cross modulation type sounds. Each channel has a dedicated Fade control, CV input, and CV Level attenuverter. These can be used together to bias incoming CV signals.

The L1 and L2 outputs from channels 1 and 2 are normalised to channel 3's inputs, which also have their own level controls to balance incoming signals. This allows very interesting, complex fading and panning between four different input sources, to either Mono or Stereo outputs..

The Triple Cross is very versatile, yet relatively simple to understand and use. However, as they say "knowledge is power", so do spend a little time reading about how to configure the channels in the four different modes, and how to combine all three channels together to create a super-powerful Four to Two to One cross fader.
Each of the three channels can be configured in four different ways, and all three can be used simultaneously. They do not all have to be in the same mode, so we could for example use channel 1 as a cross fader, channel 2 as a Panner for completely different signals, and channel 3 as a Linear VCA, again for different signals.

Specifications

Effective CV Range for CV-1, CV-2 and CV-3 is 0 to +5V with attenuverter fully clockwise or 0 to -5V with attenuverter fully anticlockwise.
Maximum permissible CV Range for CV-1, CV-2 and CV-3 is -12 to +12V
IN 1A to IN 3B Input levels -5V to +5V, levels up to +/-10V are possible however some clipping may occur.
Module Width: 14hp
Module Depth: 26mm (Including power lead)
Current Usage: 80mA Positive, 72mA Negative

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


Pan and cross fade up to three signals with AJH's versatile Triple Cross. Four different modes allow you to set up the three channels in numerous ways, for both audio and CV processing.

Supplier's Notes:
The Tone Science Triple Cross module is a design collaboration between electronic musician/composer Ian Boddy and AJH Synth.

It features three independant cross fader and panner channels, and it can be used with both audio and CV signals. Each of the channels can be configured in one of four different ways:

1) One In, One out Linear VCA

2) Two in, One out crossfader

3) One in, Two out panner,

4) Two in, Two out cross fader & reversing panner combined.

Audio rate modulation can also be used on the CV inputs to create Ring modulation and Cross modulation type sounds. Each channel has a dedicated Fade control, CV input, and CV Level attenuverter. These can be used together to bias incoming CV signals.

The L1 and L2 outputs from channels 1 and 2 are normalised to channel 3's inputs, which also have their own level controls to balance incoming signals. This allows very interesting, complex fading and panning between four different input sources, to either Mono or Stereo outputs..

The Triple Cross is very versatile, yet relatively simple to understand and use. However, as they say "knowledge is power", so do spend a little time reading about how to configure the channels in the four different modes, and how to combine all three channels together to create a super-powerful Four to Two to One cross fader.
Each of the three channels can be configured in four different ways, and all three can be used simultaneously. They do not all have to be in the same mode, so we could for example use channel 1 as a cross fader, channel 2 as a Panner for completely different signals, and channel 3 as a Linear VCA, again for different signals.

Specifications

Effective CV Range for CV-1, CV-2 and CV-3 is 0 to +5V with attenuverter fully clockwise or 0 to -5V with attenuverter fully anticlockwise.
Maximum permissible CV Range for CV-1, CV-2 and CV-3 is -12 to +12V
IN 1A to IN 3B Input levels -5V to +5V, levels up to +/-10V are possible however some clipping may occur.
Module Width: 14hp
Module Depth: 26mm (Including power lead)
Current Usage: 80mA Positive, 72mA Negative

Notes: The Tone Science Triple Cross module is a design collaboration between electronic musician/composer Ian Boddy and AJH Synth.

It features three independant cross fader and panner channels, and it can be used with both audio and CV signals. Each of the channels can be configured in one of four different ways:

1) One In, One out Linear VCA

2) Two in, One out crossfader

3) One in, Two out panner,

4) Two in, Two out cross fader & reversing panner combined.

Audio rate modulation can also be used on the CV inputs to create Ring modulation and Cross modulation type sounds. Each channel has a dedicated Fade control, CV input, and CV Level attenuverter. These can be used together to bias incoming CV signals.

The L1 and L2 outputs from channels 1 and 2 are normalised to channel 3's inputs, which also have their own level controls to balance incoming signals. This allows very interesting, complex fading and panning between four different input sources, to either Mono or Stereo outputs..

The Triple Cross is very versatile, yet relatively simple to understand and use. However, as they say "knowledge is power", so do spend a little time reading about how to configure the channels in the four different modes, and how to combine all three channels together to create a super-powerful Four to Two to One cross fader.
Each of the three channels can be configured in four different ways, and all three can be used simultaneously. They do not all have to be in the same mode, so we could for example use channel 1 as a cross fader, channel 2 as a Panner for completely different signals, and channel 3 as a Linear VCA, again for different signals.

Specifications

Effective CV Range for CV-1, CV-2 and CV-3 is 0 to +5V with attenuverter fully clockwise or 0 to -5V with attenuverter fully anticlockwise.
Maximum permissible CV Range for CV-1, CV-2 and CV-3 is -12 to +12V
IN 1A to IN 3B Input levels -5V to +5V, levels up to +/-10V are possible however some clipping may occur.
Module Width: 14hp
Module Depth: 26mm (Including power lead)
Current Usage: 80mA Positive, 72mA Negative