This is an audio demo video of the Planet Synth Sound Lab Plus Semi Modular 19 inch 4 unit rack synthesizer.

Planet Synth is a boutique synthesizer retailer run by Mike Lamay, who builds custom synths based on Ray Wilson’s Music From Outer Space designs.

Details on the synth below.

via PlanetSynth:

The Sound Lab Plus rack mount is being used as a stand alone sound box here. The last half of the vid just uses the S&H output to Modulate the VCF Cutoff.

19 INCH 4 UNIT RACK (19X7 INCHES)

• 2 VCO (1VOLT OCTAVE) WITH SYNC
• 1 SAW VCO (OSC 2 MOD OSC 1)
• 1 WAVEFORMS – SAW, SQAURE, PWM
• MIXER
• LP/HP FILTER
• 2 LFOs (SQUARE, TRI, RAMP, SAW WAVEFORMS)
• 2 ATTACK/RELEASE ENVELOPE GENERATOR (GATE, TRIG, TRIG REPEAT MODE)
• Sample and Hold
• VCA
• Patchable
• MANUAL GATE BUTTON
• ALL HIGH QUALITY CONSTRUSTION

Ray Wilson’s Music From Outer Space has introduced the Sound Lab Ultimate, an advanced three-vco monosynth.

Description:

If you’ve always wanted to build your own analog electronic music synthesizer, the MFOS Sound Lab Ultimate may well be exactly what you’ve been waiting for. The MFOS Sound Lab Ultimate is a completely new single board mono-synth from MFOS with the sickest set of features you’ll find on one PC board:

• Three Musically Accurate VCOs (sawtooth and variable width rectangular wave forms, pulse width modulation, hard-sync, log and linear CV inputs)
• VCOs provide plenty of tracking range. Listen to the samples below.
• White Noise Generator
• Active Mixer (for VCOs, noise and external input)
• Voltage Controlled LP Filter (12db/Oct doubles as a sine wave oscillator)
• Voltage Controlled Amplifier (log response)
• Attack Release Envelope Generator
• Two Low Frequency Oscillators (square, ramp, tri and sawtooth waveforms)
• Repeat Gate Generator (doubles as another square wave LFO)
• Sample & Hold (with variable sample rate and glide)
• Attenuator Bank (for an infinite variety of modulation patches)
• Patch Panel Design (provides infinitely variable combinations of sounds)
• Professionally machined panels and PC Boards available from MFOS
• Sound Lab ULTIMATE “Expander” already on the drawing board.

You can preview the sound of the Sound Lab Ultimate below. More details and demos are available at the MFOS stie.

DIY Analog Synthesizer Demonstration

via GVNZ9:

This is my DIY Synth. Using schematics from Ray Wilson, Thomas Henry and Marc Bareille, i’ve bulilt my owm machine featuring:

2 XR VCO
1 24dB Lowpass Filter
1 12dB State variable Filter
2 ADSR
2 VCA
1 LFO whit S&H
1 white noise generator
1 MIDI-CV (mcv876-4CV)
there is also a modular section in the lower-right corner of the upper half, allowing to reach almost every output&input of the single circuits. Patching an input overrides the internal connections to that input.

The XR vcos are great! Those allows continuous variation (called SKEW) from triangle to saw and from sine to “rampoid” (sort of saw with sine-ish decay) waves. I added sync switches, fm switches, lfo to skew, lfo to pitch switches, vco to skew switches.

The 12dB filter has a special feature: beyond the LP, BP, HP output it has an output wich continuosly blends the LP and HP outs according to the LFO signal

the LFO outputs saw, ramp, triangle waves and a S&H stage output. The S&H is clocked by the LFO and feeded with white noise.

Apart from circuit schematics, I made everything: PCBS, enclosure, panels, knobs, labels. The enclosure is made of walnut and can be closed and carried as a suitcase.

once closed it measures (HxWxD) 23×33x14 Cm and weights around 6Kg

took many hours of work and cost me something around 250€

This video, by Thalassa77, demonstrates the Music From Outer Space 16 Step Analog Sequencer, a DIY analog sequencer, designed by Ray Wilson.

Features:

• 16 steps
• Every Step has Gate On/off
• Coarse and Fine tune pots for programming
• Internal clock with variable rate
• Clock Out
• Synced start with external signal
• Clock in ( work slaved to external clock )
• Voltage out with or without portamento and simultaneous available

Ray Wilson’s Music From Outer Space Weird Sound Generator is a popular synth DIY project.

Wilson notes:

This is not even a shadow of a real music synthesizer but merely a fun little noise maker.

Building a WSG, while fun, is not a deeply scientific or religious experience. The WSG does not look or work at all like a synthesizer used by anyone whose name rhymes with either Cakeman or Bemerson. The WSG does not have a keyboard, it has a few knobs and switches. Do not expect to use the WSG in concert. The WSG makes mildly entertaining, droning beeps and boops.

It is designed to be built on a solderless breadboard and experimented with or put on a proto-board or PCB and placed into an outlandish case for fun by electronics hobbyists. That, as they say, is the entire enchilada.

Resources:

• WSG at the MOS site
• Matt Stanfield’s Awesome WSG Blog
• Scott Stites’ DIY site
• Dozens of Weird Sound Generators on flickr

Are you ambitious! If so this is your project! This is not for the faint of heart synth diyer. There are kludges, value changes, two boards a new front panel. But when you are done you will have a truly cool piece of analog synth gear. If you’re looking for your next project and you’re a seasoned synth diyer this may be the one you’ve been looking for.

Details are available at the site.