JS-1 Dub Synth

The JS-1 is a fully analogue synthesizer with optical modulation. It has square wave, impulse, inverse impulse, saw, inverse saw, triangle and exponential LFO shapes. You can also adjust both the carrier and modulator frequency and range. The JS-1's aluminium enclosure is only 145mm X 121mm X 39mm.

Video of Jon1st featuring the JS-1 synthesizer.

Sónar Synth

Built in collaboration with Dirty Electronics, the Sónar Synth is a compact analogue/digital hybrid synthesizer powered by a coin cell battery. This low power synthesizer is played by touching the printed Sónar logo. It can also be re-programmed by connecting a hardware programming device to the provided ICSP header. This limited edition synthesizer was made to celebrate the 20th anniversary of the Sónar music festival. Image courtesy of John Richards.


The Badaboombox Dub Reggae sound system is powered by a 125 amp hour 12 volt battery. This little setup can play at loud levels for several hours on a single charge. The top box is fitted with twin compression tweeters and features an integrated amplifier and programmable DSP.

Video of Badaboombox in action.

Athens Board

Built in collaboration with Dirty Electronics for the Athens Video Art festival. This board is an audio and visual sequencer with onboard analogue synthesizer and segmented visual display. This module can be used to clock other instruments or it can be used with an external clock source. It features a white noise generator, wave-shaping, touch contacts and more. Image and video courtesy of Stu Smith.

Video demonstration of Athens Board.

Button Basher

USB plug and play computer interface for playing beats and triggering samples. The Button Basher has a pair of rapid fire modules with independently adjustable rates. The competition grade arcade buttons are laid out in an ergonomic fashion. The enclosure is a mixture of walnut and pine wood with hand cut box joints.

White Label Synth

The White Label Synth is functionally identical to the Sónar Synth. This un-branded version can be played by touching the barcode inspired graphic etched into the face of the board. Image courtesy of Stu Smith.

LS-1 Lickshot

The LS-1 is a Lickshot style Dub Siren with adjustable pitch and rate. This analogue sound circuit uses optical modulation and has a unique ricochet mode.

Pocket Lickshot

This unit is the prototype of the LS-1 Lickshot, it's smaller and features an LFO range switch.

Zen Siren

This minimalist analogue sound circuit features all the classic Dub Siren sounds in a rugged aluminium enclosure.

Bloop & Bleep

A pair of USB interfaces for triggering beats and samples. These devices are built into a cardboard enclosure with wooden buttons and switches. Bloop and Bleep are also equipped with an analogue LFO and low pass filter with resonance. The LFO controls the filter cutoff and a fading LED backlight on the cutoff dial.

Ronin 802 Synthesizer

Made in collaboration with Majenko Technologies. This programmable digital synthesizer is compatible with Arduino, can be programmed using a simple GUI and can be paralleled up on an SPI bus allowing up to 9 Ronins to be controlled by a single Arduino.

Video demonstration of the Ronin 802 synthesizer with a glove controller that features 5 bend sensors.

12 Volt Sound System

A hand built battery powered Dub Reggae sound system. Featuring a walnut wood piezoelectric tweeter box, 12 inch bass scoops and a pair of mid-range folded horns. The green amp box has a 4 x 100 Watt amplifier, 4 way DSP for filtering and crossovers plus a 3 way passive speaker mixer.

Optical Filter

This is an optical analogue filter effects unit. The potentiometer can be used to adjust the resonance of this lowpass filter. The cutoff of the filter is controlled by the amount of light falling on the two optical sensors. It is designed to be controlled using a flashlight which creates a strong visual element when it is used in a performance.

Straight Edge Distortion

Here we have a waveform clipping distortion effect unit with distortion level, output level and bypass controls. This unit operates over a broad bandwidth and works well with bass guitar.

FM Transmitter

This micro FM transmitter circuit is designed by Mr Tetsuo Kogawa. Being built into an apple sauce jar allows us to see the hand etched circuit inside and also makes it easy to access the circuit for tuning the transmission frequency using a variable capacitor.


The Picoblok is an analogue signal conditioning module. It can be used for cleaning up audio signals. It has a wide bandwidth and two independent channels. The input level can be attenuated and the output can be adjusted from unity to 100 times gain. This amplifier is good for buffering, impedance matching and removing DC offset.

Stereo Microphone

Using the Picoblok module this stereo condenser microphone is battery powered and has adjustable gain and attenuation levels for both channels.


This is a design mockup of a prototype modular analogue synthesizer. Each module is around 8cm square and the modules connect together to share power and audio signals. There is currently an oscillator module with FM input and adjustable waveshape, an amplitude modulation module, a variable state filter module with cutoff modulation and adjustable resonance and an output module with an audio socket and attenuator potentiometer. By connecting the modules together in various combinations a variety of sounds can be produced.

Digi Delay

This digital delay effects unit is built around the Pt2399 delay IC from Princeton Technologies. The unit has time and feedback controls, input attenuation, feedback filter and mix selection plus a Feedblast trigger button for injecting a blast of feedback. The unit can be played with its own feedback and can be used as a standalone instrument. Adjusting the time base repitches the sound and emulates an analogue delay unit.

Tape Delay

Made from entirely scavenged parts, this is an analogue tape delay effects unit. Featuring output level, feedback level and speed control. This unit can be used for looping samples, repitching sounds and creating echo effects.


The POsc is a pocket oscillator with a square wave gate. The frequency of the oscillator is controlled by the amount of light falling on the light sensor and the speed of the gate is controlled by the resistance over the two touch contacts. An LED in the central emblem flashes in response to the sound.

Morse Oscillator

This is a morse code practice oscillator in a hand built acrylic case. It has pitch and level controls and also a built in buzzer or headphone output.


The Snowball is an analogue white noise generator with a fixed amplitude envelope. Noise is generated by a reverse biased NPN bipolar junction silicon transistor.


The Sniffer is an electromagnetic pickup with a built in preamp and speaker. It can be used to convert electrical signals into audio, unlocking a hidden world of sounds in everyday electronic equipment.

Wave Shaper

This is a wave-shaping oscillator that can morph from a triangle wave to a square wave. It has frequency control and a frequency modulation input.

Hand Etched Boards

These are hand etched paper resin boards that are stained in a variety of colours using ink.

Milgram 555

The Milgram 555 is a synthesizer sequencer that uses nine 555 timers and a shift register to create a sequencer that can have multiple streams of the same sequence running at the same time. It features pitch, octave, tempo, note length and various other controls.

Noise Choppa

This noise machine has touch contacts for creating noise, oscillation and feedback. It also features an adjustable rate gate for slicing up the noise. This unit is built into a surface mount box designed for domestic mains electrics.


Built using the Picoblok, the Noisealator uses touch contacts to create noise and oscillation, it also has a feedback control potentiometer. Like the Noise Choppa, it is built into a domestic electrics box.