"Nimbus is a homemade digital 4 voice polyphonic synthesizer.
Nimbus Features:
3 Oscillators With Shape (Sawtooth/Square/Triangle)
Noise
Detune
2 LFOs (Pitch/Filter)
Amp and Filter Envelopes
Low-Pass Filter(Cutoff/Resonance controls)
Octave Control
8 Scales (8 Notes Per Scale A min - G min + Chromatic)
32 Step Sequencer (2 Note Polyphony Per Step)
Store / Load 8 Presets
MIDI Input for Notes and Controls
$300"
"It’s coming out in Euro pretty soon I hope. I was going to add a clock input.
Clock output potentially, you mean linked to loop speed or BPM?"
John Crombie also worked on a prototype synthesizer named Pulse Synthesizers 4 to 5 years ago. The following is a playlist in reverse order featuring videos on the prototyping.
Playlist:
1. Pulse Synthesizers Case
Prototype case made from 3mm acrylic dark grey acrylic.
2. Pulse Synthesizers acid riff
Some acid sounding lines using the Pulse prototype. You can see me changing the filter envelope amount and resonance which has the most effect. Filters are all digital.
3. Pulse Synthesizers arpeggiator
Demo of the arp function in development. Height of vertical bars indicates pitch. Currently its connected via the USART to the synth DSP board.
4. Pulse Synthesizers, patch list selection
Patch list screen using rotary encoder with push button for selection.
5. Pulse Synthesizers oscillator wave selection
Oscillator wave selection shows a single period plot of the wave. Waves are selected using a rotary encoder.
6. Pulse Synthesizers filter development
Pulse Synthesizers prototype development.
I've added a second filter which can be in parallel, series or split between the two oscillators. Envelope amount and key follow are also added.
7. Pulse Synthesizers Prototype
Wavetable synthesizer prototype built on an STM32F4 microcontroller. MIDI notes are being triggered from Cubase software.
Functionality
2 x Wavetable oscillators with wavetable scanning knobs
Mixer for oscillators, noise and ring modulation
Envelope generator - ADSR controls
2 x Low Frequency Oscillators with frequency, depth and rotary encoders for selecting wave type and modulation destination
Delay effect with time and feedback controls
Reverb effect
11 x Filter types including LPF, HPF, BPF, Notch
MIDI 5 pin DIN interface
Graphic LCD 320 x 240 - only basic information currently shown however this will be expanded to cover a number of different menus.
Future work:
Sound patches
Non volatile memory for user patch storage
More filters
More wavetables
Acrylic case
PCB
External 16bit DAC interface (currently using inbuilt STM32F4 DAC)
"Up for sale, a 1980's Moog Source vintage analog synthesizer in excellent condition and in perfect working order. Complete with a brand new secondary membrane control panel, LeCover dust cover, additional padded cover, and original manual, this vintage synth is a well-kept example of Moog's first programmable model. With additional MIDI upgrades, the flexibility of this keyboard is greatly increased, and the two classic MiniMoog analog oscillators and 24 dB filter sound incredibly fat and rich.
Moog's Source was their first to offer patch memory storage, with 16 memory locations to instantly recall your synth patches. A cassette-tape jack was also implemented to transfer your patches to and from an external tape and free up the on-board memory for additional new patches. Unlike previous Moog models, all parameters are controlled by a single data wheel. Just select your desired patch or parameter on the membrane pad and use the wheel to assign a value from 1-100. Straightforward and easy to use, the Source allows for a variety of distinct Moog sounds to be selected on the fly and additional tweaking can be done in real time too."
"This auction contains the early version of the Roland Catalog Volume 3 (46 pages).
This Roland Catalog contain some of the best vintage synthesizers Roland ever made.
This Roland Catalog contains information and picture’s of the Roland System 700/ System 100/ System 100M/ SH-2/Jupiter-4/Promars and much more.
This is a must-have for any vintage synthesizer/Roland collector as these are getting very hard/impossible to find these days.
The early catalog Volume 3 has no writing,highlighting,underlining or any stamps in it.This catalog is in very good condition, see the picture's for more detail."
Side note: be sure to check out Retro Synth Ads for more scans of vintage synth brochures, catalogs and adverts.
"This auction contains the early version of the Roland Catalog Volume 2 (42 pages). This Roland Catalog contain some of the best vintage synthesizers Roland ever made.
This Roland Catalog contains information and picture’s of the Roland System 700/ System 100/ System 100M/ SH-5/SH-7/Jupiter-4 and much more.
This is a must-have for any vintage synthesizer/Roland collector as these are getting very hard/impossible to find these days.
The early catalog Volume 2 has no writing,highlighting,underlining or any stamps in it. This catalog has 3 holes punched into it.This catalog is in good condition, see the picture's for more detail."
Side note: be sure to check out Retro Synth Ads for more scans of vintage synth brochures, catalogs and adverts.
"8"x11" Fairlight CMI brochure (when folded closed) The interior (not shown) is packed full of information and photos and is very clean. the outside has quite a bit of shelf wear but still looks very nice. It is really exciting to see the Fairlight and read all about its capabilities even to this day."
Side note: be sure to check out Retro Synth Ads for more scans of vintage synth brochures, catalogs and adverts.
