via this auction
SN VFX-15056
See the seller's other items for more: onkloud9
Sunday, June 12, 2011
Kurzweil K2000R V3 with new backlight
Elektor Formant Analogue Modular Synthesizer
via this auctionvia the description:
"An auction for a working modular synthesizer from the 70s featuring -:
2 – VCO (Elektor)
1 – VCF switchable up to 24db/oct (Elektor)
1 – VCA (Elektor)
2 – ADSR Envelope shapers (Elektor)
3 – LFOs with various waveforms (Elektor)
1 – Noise Module (Elektor)
1 – Ring Modulator (Practical Electronics)
1 – Envelope shaper (Practical Electronics)3 – AC/DC Mixers for signals or voltages (Own Design)
1 – Voltage Inverter Panel (Own Design)
1 – Pre-amp Module (Own Design)
1 – Multiple Jack Panel (Own Design)
1 _ 4 Octave Monophonic Keyboard (Originally a Farfisa K/B)
1 –Power Supply inside the case (Elektor) and a Power Panel (Own Design)
This unit was built by myself in the late 70s and has given excellent results for many years. I have generally used it with a MIDI to CV converter. It produces really fat deep bass tones when used with a sequencer, it can also produce some screaming lead tones. It is also excellent for sound FX and all those weird sounds. The 2 oscillators track very well (1Volt/Oct.), but could do with slight trimming the control voltages. This is only noticeable by a few beat-frequencies when running in unison. As well as a mixed waveform output, there are separate waveform outputs, which all have an open jack plug inserted instead of switches, so you can take different waveforms to different modules. The 24db filter can self oscillate if the ‘Q’ control is increased. The 2 ADSRs decay with slightly different timings, possibly due to tolerances in the components. I have looked at this but can’t find any difference in the component values. This has never been an issue, because I use them for different tasks (1-VCF, 1-VCA). The 3 LFOs are excellent for modulation of many other modules. The noise output is a bit quite, but still works OK. There is also a Differential Amplifier panel, I’m not sure if this works, and it is not wired in anyway.
The system is already internally wired from the 2 VCOs through the VCF to the VCA, so it does not need any cables to get a basic sound out of it.It also comes with a Practical Electronics 1x16 or 2x8 stage sequencer in a separate cab. I was going to add extra controls during the build but never finished them. (separate triggers out, voltage out level selector switches). In the same case there are various other modules which are not wired in, and I’m not sure if they work or not. There is a 2 channel input module, for audio signals in. A pulse divider, for use with the sequencer. A sequential switch for use with the sequencer. I have all circuits for these units, if you want to get them working again.
It also comes with a Voltage Controlled keyboard taken from a Farfisa organ with the standard V/C panel made by Elektor. The panel works, but the contacts are very hit and miss, so it will need servicing. The wooden top is not fixed in, just placed on top of the contacts.
The whole system comes with the original magazines and extra paperwork for the other modules. These all give full information for building and setting up.
For more Info see link - http://www.elektor.com/magazines/2008/april/formant-synthesizer-(1977).399233.lynkx
A PDF of the construction details - http://www.ftec-audio.com/formant-classic/downloads/ElektorFormantMusicSynthesiser.pdf"
Circuit Bent Yamaha PSR 22
YouTube Uploaded by FrankenMusik on Jun 12, 2011
"Circuit Bent Vintage 80's Yamaha Key Board.
Video has original sounds and also shows what type of textures can be produced by using external delay and reverb (shown about halfway into the video).
http://www.frankenmusik.blogspot.com/"
via this auction"By FrankenMusik
Drone/Ambient/Glitch Synthesizer
A full size keyboard with lots of glitches and added effects.
8 Switch FM Glitch Modification
2 Body Contact Points
Distortion Glitch
Feed Back Loops
Echo Effect Switch
4 Other Glitch Effects
Has Built In 1/4" Output
RCA Style Aux. Out and Pedal Jacks
This is a custom Circuit Bent vintage 80's Yamaha keyboard that still allows for normal operation. Full size keys, pitch control, digital synthesizer, custom drum programmer and sustain effect are some of this instruments key feartures."
Simmons SDS 200 2-voice drum synth
via this auction
"Vintage Simmons SDS 200 in excellent condition. 2 velocity-sensitive Tom voice channels, amazing range of pitch and timbre. 1/4" trigger IN and 1/4" audio output for each sound. Attached and grounded power cord, power switch, headphones jack (1/4"). Triggerable with virtually any voltage source."
Muse Research Receptor 1.0 Rev C
via this auction
"Hardware Version: 1.0 Receptor PRO
Memory: 98% available --- 2048 total
Hard Disk: 95.4G available --- 400.0G total"
Pics of the OS and editor below.
Roland TR-33 Rhythm analog drum machine
via this auctionUpdate via Hamstall Ridware on Facebook: "That's only one generation away from the AceTone RhythmAce (or Bentley Rhythm Ace as they were called in the uk!)"
Roland SH-101 With NOVA MODS + EXTRAS
via this auction
"Here Are Some Features for The Nova Mods...
* VCF FM : Amazing new sounds are now added through this feature. Six FM sources are available
* LFO Clock Input : Syncing Arpeggiator and LFO to external drum modules and sequencers is now possible. As well, interesting feedback loops can be created.
* PW Modulation Source Selection : Now you can choose a pulse width source. It is independent from the LFO's waveform setting. OSC sources are included.
* Pulse width to near 0% : Pulse width effects are now made more extreme and powerful* External audio input : the ability to do FM of VCF by an external audio source or to simply route a signal into the audio path is now provided.
* VCF CV input : Just plug in a foot pedal or a CV from a midi converter and your sh-101 will sing!
* LFO rate Scalar : Ever hear a bell sound out of sh-101? Try this on Hi! Want a really slow sweep...you got it too.
* Overdrive Knob : Filter Cleaning
Nova Mod Details :Pulse width to near 0% - By closing the pulse-width to a spike, new sounds can be attained by the sh-101. This "spike" wave source is very useful for brightening a bass patch. (A bass patch, with only the sub OSC waveform assigned, can be brightened, but not raise in pitch, by adding a little pulse width signal with a manual setting of less than 1% duty cycle.) In another application, in which only full ramp waveform is assigned, manually raising and lowering the spike waveform's amplitude has been compared to sounding like a wavetable sweep. As well, LFO mudulation of the pulsewidth is made more dramatic because of the closer approach to 0%.
Pulsewidth Modulation Source Selection - A six-way rotary switch enables you to choose the pulsewidth modulation sources independently of the LFO's waveform setting. This modulation source makes many new and interesting sounds. A randomly modulated pulsewidth is especially unique and pleasant. The PW modulation sources are LFO Triangle / LFO Square / LFO Random / Sub Osc -1 Octave Square* / Sub Osc -2 Octave Pulse* / LFO Noise *The sub Osc Mod sources creates a unique bass enhancement because of their higher frequency and keytracking. The result is a richer and deeper sound. As well, although there are only two sub Osc sources, changing the sub Osc switch -1/-2/-2 results in even further modulation effects.
LFO Rate Scalar - A three-way toggle switch scales the overall range of the SH-101's internal LFO Clk (the existing lfo rate slider still functions normally). The scalar setting are Normal/Low/High. In the Low setting, a cycle of 40 seconds can be attained. This is great for mild changes in "trance" type music. In the High Mode, up to 1200Hz can be used to create interesting cross-mod bell like sounds. Perfect for "industrial" music and clanging metallic sounds. High mode works especially well when creating synthetic kick drum patch or short-wave radio sounds.LFO Clock Input - A 1/4" jack allows the insertion of an external clock signal to drive the 101's LFO. This injected signal triggers the LFO but does not change it's waveform. By applying a clock, LFO and Arpeggiator are both synced to the external source. This makes for very moving and groovy patterns with only a drum box and Nova-Modded 101. A particularly nice application is to modulate the VCF Cutoff with a Random LFO while playing the sequencer. Of course you can, at the same time, inject a separate clock into the arpeggiator via the 101's Ext Clk jack. This will enable you to run the arpeggiator and LFO at different speeds. As a bonus, audio can be injected to drive the LFO. A simple trick is to patch the headphone output into the Ext' LFO input. This feedback loop makes for sounds that can be mildly distorted to heavily distorted by simply adjusting the VCF's mod amount.(No need for an external distortion processor!) This effect is great for slow sweeps with a resonating filter setting.
External Audio Input - A 1/4" jack and toggle switch allows external audio to be injected. A rotary pot controls the amplitude of the injected signal. It can be routed to one or two sources. 1./ directly into the filter along with the OSC's waveforms. External processing of audio through the VCF and ENV is . 2./ into the VCF's cutoff modulation point. (An external FM source.)
VCF CV Input - An external CV can be applied to the 101 via this 1/4" jack. This feature is typical on a Juno-60, Jupiter 4 and Pro-One. A MIDI controller converted to a cv or an "expression" foot pedal are typically connected one.
VCF FM - VCF Fm is the most powerful NOVA-MOD feature. It can be used in moderation to simply add bringtness to a bass patch with low frequencies (due to subtractive synthesis). Or it can be used to create powerful cross-mod sounds that are difficult to explain....they must be heard. These sounds are somewhat aggressive, distorted, bell like but most importantly, not attainable on a regular SH-101. One example : Dial a patch with only ramp waveform assigned but at the same time, modulate the VCF Cutoff with the Pulsewidth. Manually change the pulsewidth to vary the FM effect. It is quite unique. You can then switch in Sub Osc -2 Oct. Pulse as the Fm source then adjust the -1oct/-2oct/-2oct switch to change the sound further. Finally swing the Pulsewidth waveform as the Fm source but switch from Manual to LFo modulation and then play with the PW Mod's waveform. A rotary pot controls the amount of modulation. A six way rotary switch selects the FM sounce : Pulse / Ramp / -1 Octave Sqr / -2 Octave Sqr / -2 Octave Pulse / Noise Waveform"
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MATRIXSYNTH is supported by affiliate links that use cookies to track clickthroughs and sales. See the privacy policy for details.
MATRIXSYNTH - EVERYTHING SYNTH
