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Bygones Nostalgic Multi Effect Guitar Pedal V2: Backlit colored knobs Machined anodized aluminum case 7 programmable presets Midi controls Stereo input and output Dual relay true bypass

A prototype of a polyphonic analog synth, built by Moog Music in 1983, which never went into production. The SL-8 was intended to be a less expensive synth than the Memorymoog, to compete against the Juno-60 and Prophet-800, but also fix the reliability and tuning stability problems that the Memorymoog suffered from.

The SL-8 nomenclature came from the fact that it would have had 8 voices and bitimbral capability, with each timbre controlled from half of a split keyboard. The voice architecture consisted of one DCO, with a second slave oscillator that could be sync'ed to the DCO in various ways to produce complex timbres. A classic Moog transistor ladder VCF and a Curtis VCA completed the basic voice signal path, and the synth had a built-in chorus effect with programmable rate and depth. The synth had patch memory with 100 locations, and built-in sequencer and arpeggiator capability. All of this was controlled, and the DCO timing came from, a Texas Instruments TMS 99/4 16-bit microprocessor, which would have made the SL-8 one of the first synths to use 16-bit processing. This also allowed for greater precision in patch parameter digitizing, compared to the competing synths from Roland, Sequential Circuits, and Korg.

One prototype was built, and exhibited at the 1983 NAMM show (with the microprocessor replaced with a TMS 9900 in-circuit emulator and development system, discreetly concealed behind a partition). At the same show, Yamaha introduced the DX7. The Moog personnel listened to demonstrations of the DX7 and concluded that the SL-8 could not compete on either features or price. Moog made a decision to not put the SL-8 into production and to terminate further synth development; this marked the beginning of the end for the original Moog Music. The circuit guts and operating system source code disappeared at some point before Moog's liquidation, and no recordings of the SL-8 are known to survive. The case and panel were saved by an employee, who has since donated them to the Audities Foundation.

source: https://electronicmusic.fandom.com/wiki/SL-8

A custom, Arduino-based MIDI Controller for Oberheim Matrix: - Hardware 19” 3U rack - Compatible with Matrix 6 Keyboard, Matrix 6R Rack & Matrix 1000 Rack units - 32 knobs covering 50 parameters (2 virtual layers) - All 96 of the Matrix’s voice parameters (including the modulation matrix) editable using display and buttons - Control up to 4 Matrix synths at the same time - Full SysEx and MIDI CC implementation - Store and manage 1000 patches - Includes a powerful arpeggiator - Computer free! - Available as a DIY kit (soldering required)

Specs: The MFB SYNTH 8 has three analog VCOs per voice, which can produce saw, pulse, and triangle waveforms. There’s also ring modulation and noise. All three VCOs can be frequency modulated, and oscillators 2 and 3 can sync to OSC 1. For a thick vintage sound, the VCOs use analog circuitry and components that resemble circuit designs of the 1970s. But there’s also a selectable DCO mode to control the oscillators’ tuning digitally, in case you run into tuning problems or are going after that 80s DCO sound.

The SYNTH 8 has two analog filters with different designs and characteristics. There’s a 24 dB low pass, and a 12 dB multi-mode filter, with the latter featuring an OTA design. The filters can be wired in series or parallel, and there’s a knob for blending their outputs. For modulation, the SYNTH 8 has two LFOs and three envelopes. Envelopes 1 and 2 are loopable ADSRs, while envelope 3 is a simple AD. All of the modulators are digital. This also applies to the SYNTH 8’s effects section.

Price and availability: MFB says that the SYNTH 8 should be available in the fall of 2019. The company is expecting a price of just under 1000 Euros. Not bad at all! The synth also has a step sequencer / arpeggiator, which seems to be comparable to the Dominion 1

Specs: The MFB SYNTH Pro (formaly MFB SYNTH 8) has three analog VCOs per voice, which can produce saw, pulse, and triangle waveforms. There’s also ring modulation and noise. All three VCOs can be frequency modulated, and oscillators 2 and 3 can sync to OSC 1. For a thick vintage sound, the VCOs use analog circuitry and components that resemble circuit designs of the 1970s. But there’s also a selectable DCO mode to control the oscillators’ tuning digitally, in case you run into tuning problems or are going after that 80s DCO sound.

The SYNTH 8 has two analog filters with different designs and characteristics. There’s a 24 dB low pass, and a 12 dB multi-mode filter, with the latter featuring an OTA design. The filters can be wired in series or parallel, and there’s a knob for blending their outputs. For modulation, the SYNTH Pro has two LFOs and three envelopes. Envelopes 1 and 2 are loopable ADSRs, while envelope 3 is a simple AD. All of the modulators are digital. This also applies to the SYNTH Pro’s effects section.

Price and availability: MFB says that the SYNTH Pro should be available in the fall of 2019. The price will be 1080,-€ in Europe (including 19% VAT). Not bad at all! The synth also has a step sequencer / arpeggiator, which seems to be comparable to the Dominion 1

Specs: The MFB SYNTH 8 has three analog VCOs per voice, which can produce saw, pulse, and triangle waveforms. There’s also ring modulation and noise. All three VCOs can be frequency modulated, and oscillators 2 and 3 can sync to OSC 1. For a thick vintage sound, the VCOs use analog circuitry and components that resemble circuit designs of the 1970s. But there’s also a selectable DCO mode to control the oscillators’ tuning digitally, in case you run into tuning problems or are going after that 80s DCO sound.

The SYNTH 8 has two analog filters with different designs and characteristics. There’s a 24 dB low pass, and a 12 dB multi-mode filter, with the latter featuring an OTA design. The filters can be wired in series or parallel, and there’s a knob for blending their outputs. For modulation, the SYNTH 8 has two LFOs and three envelopes. Envelopes 1 and 2 are loopable ADSRs, while envelope 3 is a simple AD. All of the modulators are digital. This also applies to the SYNTH 8’s effects section.

Price and availability: MFB says that the SYNTH 8 should be available in the fall of 2019. The company is expecting a price of just under 1000 Euros. Not bad at all! The synth also has a step sequencer / arpeggiator, which seems to be comparable to the Dominion 1

After 10 years as an organ manufacturer, Wersi enters the synthesizer field with the EX20 module. A digital 20 note polyphonic synthesizer.

Its sounds are based on a configuration of sounds modules such as wave, pitch-envelope, amplitude envelopes and analog effects to produce fourier, waveform sample, and modular synthesis. The front panel features a 32 slider 'wavemaker' module used for each synthesis mode.

A 61 note velocity & pressure keyboard can split and provide up to 8 timbres simultaneously per side. The EX20 is a rack mount version of the Wersi MK1. Both instruments can 'see' up to 16 midi channels for multitimbral operation, and transmits on up to 8 channels at one time."

The Grp R24 is a 8x3 analog step sequencer firmly based on the mighty step sequencer previously developed in Grp A8 and A4 Analog Synthesizers. The new R24 is full of control capability with CV/Gate, MIDI and USB connections. Hardware-wise, is stand-alone self powered, with hardware compatibility for mount on 5U module format; you can use in stand alone with its internal power, or you can install in your Dot.com/Cotk/Moon Modular system. R24 respects electrical and mechanical standards for the above manifacturers. With the appropriate brackets included in the package the machine can be easily installed in a 19 "rack Still, you can use R24’s own cabinet as a “presto-cabinet” for powering and using your spare 5U modules. R24 has 64 internal memories for store and retrieve separate sequences; each sequence can be set in 8x2, 16+8 or 24 mode, with any step lenght user’s selectable. R24 can act as CV/Gate sequencer or as MIDI sequencer, with separate rows for MIDI Note selection and for Key Velocity step adjust.