MATRIXSYNTH

Mutronics Mutator

This one is listed on MATRIXSYNTH-P with more pics.

Half Sized White Haken Continuum

This one is listed on MATRIXSYNTH-P with additional pics.

Dataline - A Lifetime In Minutes...Elektron Trinity + OP1

YouTube Published on May 6, 2012 by MrDataline

"Facebook Page; http://www.facebook.com/Project.Dataline
Soundcloud Page; http://www.soundcloud.com/dataline
Download music at http://www.dataline.bandcamp.com
Done on the Elektron Trinity + OP1. Had fun working on this track."

Red Special Edition x0xb0x Ebay Demo

Note: Auction links are affiliate links for which the site may be compensated.
YouTube Published on May 6, 2012 by x0xb0x81

via this auction
"HE X0XB0X CAN ALSO BE USED AS A MIDI TO CV CONVERTER FOR USE ON VINTAGE ANALOG SYNTHS SUCH AS ROLAND SH 101 ETC.

Polyphony - Monophonic
Multitimbral - 1 part
Oscillators - 1 VCO
Waveforms - saw, square
Filter - 18 dB/oct analog low pass
Envelope - Control pots for Decay time and Accent intensity
Sequencer - 1-Track

Patterns - 64 banks of user patterns
Songs - 128 banks user tracks
Memory - No sound patch memory
Control - MIDI In/Out, DINSYNC, CV, Gate, USB
VCA - BA6110

Input/Output:
* DINSYNC-in
* MIDI-in
* MIDI-out
* CV-out (⅛")
* Gate-out (⅛")
* MIX-in (¼")
* Headphone output (¼")
* Line-level output (¼")
* USB for computer interface & control

# Pure analog voice circuitry
# Vintage analog components
# MIDI Play
# MIDI-to-CV/Gate conversion (to control analogue synths)
# EEPROM for 128 banks of track memory/64 banks of pattern memory (no battery)"

Korg 800dv SN 770398

Note: Auction links are affiliate links for which the site may be compensated.

via this auction

CLICK FOR MORE »

Home made analogue mono-synth from R.A.Penfold Book

Note: Auction links are affiliate links for which the site may be compensated.

via this auction

"Here for sale is a home made analogue mono-synth constructed from a book by R.A.Penfold called "Electronic Synthesiser Construction"... Link to the book is here [on Amazon]

The synthesiser was built by me in the early nineties and then forgotten about in a cupboard for many years, now during a studio clear out it's resurfaced and I thought it should get some use somewhere else in the world! :-)

The synth concept follows the classic layout of a single VCO with Square / Tri / Pulse waveforms, Mixer, multimode resonant 12db/oct VCF and finally VCA. There is also an LFO and ENV generator for modulation of the VCO, VCF and VCA..

The connections round the back are CV, Gate In, Audio In (routed to mixer and then on to the VCF) and the main Audio Out - all are on 1/4inch jack sockets.

It sounded great back in the day but now it has some faults so I'm listing it as For Parts Or Not Working.
I've tested it and established the following issues.
LFO is not working,
VCO tuning is prone to wander around,
Mutimode VCF seems to sometimes function as a lowpass and then wanders into bandpass mode,
VCF resonance control is dodgy.
VCF is easily over-driven by the levels in the mixer - perhaps this VCF behaviour is not exactly a fault but I thought it was a tad harsh but maybe that's just me..."

Update:

penfold1

YouTube Published on May 6, 2012 by monkeyb0y999

Home made analogue mono-synth from the R.A.Penfold book "Electronic Synthesiser Construction". Vid2

YouTube Published on May 6, 2012 by monkeyb0y999

"Demo of a home-brew synth I built in the nineties from the excellent R.A.Penfold book "Electronic Synthesiser Construction".

It's a single VCO affair with an OTA based 12db/oct state variable VCF.
The sequence is from a x0xb0x controlling the synth over CV/Gate.
I'm selling it on eBay and the video has been posted to highlight a number of faults the synth has like the fact the LFO no longer functions, the tuning wanders and some of the controls are a bit flaky. Will prob leave it up on youTube after the auction for historical interest."

Rare 1974 Maestro Filter Sample Hold

Note: Auction links are affiliate links for which the site may be compensated.

via this auction

"1974 Maestro Filter Sample/Hold effect pedal ( also known as the Oberheim Voltage Control Filter VCF ) This is one of the funkiest envelope filter guitar synth pedals out there! The last one that sold on Ebay was in beat condition and sold for over $500! According to the pot codes this pedal as made during the 42nd week of 1974..."

CLICK FOR MORE »

Synare 2 Analog Percussion Synthesizer

Note: Auction links are affiliate links for which the site may be compensated.
YouTube Published on May 6, 2012 by moogplayer

"Selling this rare gem on eBay. This model was manufactured from 1976 to 1982 and was Star's flagship model. This was very much like the Synare 1, with one oscillator with sawtooth, and pulse waveforms, white noise generator, etc. But this had assignable functions, ie. routing the LFO to control certain parameters at once. The LFO also added a sawtooth waveform You could also select a wide range of octaves for the pitch to sound at, along with a fine tune function. A major adjustment was the introduction of a fairly advanced sequencer with different patters, and the ability to change patterns and octaves. You could also adjust the speed and the note(s) sounded by the sequencer. This model features 16 pads instead of the previous four. Retail price in 1976 was $1,395.00. This high price has made the Synare 2 very rare. According to one of Star's founders, about 50-75 of these units were built."

Synares on eBay