Strongly consider the multitrack or even the sixtrack. The prophet5, prophet10, prophett8, prophet600 and six trak to name a few all had patch memory. It relied on midi messages for parameter changes, having no onboard way to vary them. Sci was a californiabased synthesizer company that was founded in the early 1970s by dave smith, and sold to yamaha corporation in 1987. Mar 08, 2014 this video, via analogaudio1, takes a look at the vintage sequential circuits six trak analog synthesizer. Timing analysis and optimization of sequential circuits by maheshwari, naresh. The 40 is indeed a dual flipflop and the 4053 is an analogue switch with three spdt switches in, and the tl062 is a dual opamp. One oscillator per voice in polyphonic mode, or 6 stacked oscillators in monophonic mode, allowing very thick sounds.
The sixtrak was the first midi equipped, multitimbral analog synthesizer. The sequential circuits six trak polyphonic synthesizer may be labelled as a beginner model by the company, but the features and functionality make it a prime choice for any synth enthusiast. Sequential circuits sixtrak new custom patches analog. Amazing condition, i was shocked to find one that plays looks sounds and functions this well, but space is at a premium so unfortunately i have to pass. Sadly enough, i had just decided to part with the instrument when i discovered its enormous potential. The sequential circuits sixtrak was meant to be an entry level synthesizer and was the first multitimbral synthesizer.
The assignment settings for the various parameters are listed in the center of the front panel. Make offer 80s sequential curcuits six trax keyboard 49 key. Sequential circuits sixtrak vintage synth explorer. Strongly consider the multitrack or even the sixtrack before diving into the max. Sequential circuits sixtrak 5 favorite sounds 2017 analog. From about 1984 to 1986, a company called sequential circuits made a little known synthesizer with a builtin keyboard called the max. The sixtrak was also designed as a midi instrument. Note that both the multi trak and the tom drum used the same e170 power supply, so this should work with the sequential tom drum as well, although i have never tried it. It offered 10voice analog polyphony, a dualmanual keyboard, and cassette. The sequential circuits six trak is one of the few small analog synths that really took me by surprise. The six trak was an analogue synthesizer manufactured by sequential circuits in san jose, california and released in january 1984.
Mix sequential circuits six trak demo youtube top secret drum corps of basel meets the blue devil percussion team of concorde california duration. The software allowed voice and sequencer programming and storage. Actually, since building that circuit, i was informed of a much easier way to make a power supply for the multitrak. Im currently only providing a patch sheet for the proone as it was sequential s only true synth without any patch memory, along with the ensemble synths. The simplest latch we can build using two nor gates is called srlatch or rslatch and is shown on diagram below. It has typical sequential sounds in an analog six oscillator, six voice synth.
A mac editor for the sequential circuits max keyboard. We have 1 sequential six trak manual available for free pdf download. Synthesizer demo of the analog synthesizer sci sixtrak from 1984. Sequential marketed the sixtrak and its software with their drumtraks drum machine as a complete midi system. The sequential circuits six trak is a polyphonic analog synthesizer manufactured in san jose usa in 1984. Sequential circuits six trak operation manual author. The sequential circuits max was designed as a companion to the sixtrack, multitrak and possibly the c64 personal computer. The sequential circuits max was designed as a companion to the six track, multi trak and possibly the c64 personal computer. Parts and replacement keys for sequential circuits six trak keyboards. Parts and accessories for sequential circuits keyboards. Note that both the multitrak and the tom drum used the same e170 power supply, so this should work with the sequential tom drum as well, although i have never tried it. Tn610o model 610 sixtrak preliminary service data table of contents topic page general description sheet a power supply tune test sheet c 10 c 1984 by sequential circuits. This sixtrak keyboard is in excellent electronic and cosmetic condition. Around 198384 sequential circuits, in order to break into the japanese market, shipped the curtis sente cem 3394 chip and the firmware for the sequential six trak to an other japanese manufacturer.
Now, i have received my replacement sequential circuits six trak battery. Sixtrack manual plus other assorted sixtrack related files. Unlike the korg instruments, the sixtrak does not contain a schematic display of. View online or download sequential six trak operation manual.
Replacement keys these plastic keys will replace broken ones on your keyboard. Sequential circuits project gutenberg selfpublishing. It is truly one of the last great analog synths that is still affordable to the bulk of the indie world. The sequencing specs are dramatically enhanced by the model 920 software as well, boosting the note capacity from 500 notes to 3400. Photo by jerry burch the sci six trak was released in 1984. Sequential circuit 610 six track service manual synthxl. Sequential circuits were a company i always thought to be cool, even though the six trak was certainly the lower end. Mar 06, 2014 c by analogaudio1 you can buy these patches read the description for further details scroll down.
Model610 dedicated controller for sequential circuits. If unison is on in the current program, all six voices will be. There are several different types of keys used on the sci keyboards, so you will need to make sure you order the. A survival kit and service manual will help carry your sequential tm keyboard well into the 21st century. Six trak battery replacement question soldering noob one more question for six trak owners, if youll kindly indulge me i havent soldered anything but input jacks in the past. Its important to remember that the feedback in electronic circuits can be a reason of their instability the circuit then becomes an oscillator. At the heart of all trak keyboards are the 6 custom synthonchip cem3394s. Model610 is an indispensable tool for owners of the sequential circuits six trak synthesizers. Sequential six trak operation manual 92 pages brand. Sequential circuits 610 six trak synthesizer ownersuser manual contents. The sequential circuits sixtrak and max keyboards are vintage analogs that offer decent analog synth engines, but terrible patch editing.
The cem3394s are highlyintegrated voltagecontrolled. Sequential circuits sixtrak parts and replacement keys. There are lot of confusing new toys, many little boxes, few buttons all essentially strange instruments. Sixtrak battery replacement question soldering noob. Jun 24, 2017 sequential circuits six trak 5 favorite sounds 2017 synthesizer demo by rik marston 100% no talking watch in hd turn it up if you like the sounds of the sequential circuits six trak. The cem3394s are highlyintegrated voltage controlled. Maybe its a modification for a very early production one, to fix some bug on early boards.
Sequential circuit prophet vs 2000 replacement weighted keys. The tune and value knobs and the mod wheel and pitch wheel are read through another 4051 to be interfaced to the common dac comparator adc circuitry used in most analog synths with storage. It was also one of the first midi instruments designed to be used with a computer in this case, the commodore 64. Pictures and info on the range of sequential circuits synths from synthmuseum. A classic hammond organ style patch, with a bit of percussion and vibrato. It is notable for being one of the first multitimbral synthesizers, equipped with midi and an onboard six track digital sequencer, hence the name. The sequential circuits sixtrak is a 49 key, 6 voice multitimbral via sequencer analog synthesizer, featuring a programmable oscillator, resonant low pass filter 24db cem, 3 envelopes, and lfo, along with 100 program memories, arpeggiator, 6 track 800 note sequencer, and midi. The oscillator chips were apparently built expressly for arcade games, and it sounds like it. Sequential sixtrak manuals manuals and user guides for sequential six trak. This corrects the phase of the of the 8253 accesses relative to the. Sequential circuits sixtrak sequential circuits encyclotronic. It has midi input, an arpeggiator and a six track sequencer. Sequential circuits sixtrak operation manual encyclotronic.
Tn610o model 610 sixtrak preliminary service data table of contents topic page general description sheet a power supply tune test sheet c 10 c 1984 by sequential circuits, inc. An owners guide for the operation of the equipment. The sequential circuits six trak is a 49 key, 6 voice multitimbral via sequencer analog synthesizer, featuring a programmable oscillator, resonant low pass filter 24db cem, 3 envelopes, and lfo, along with 100 program memories, arpeggiator, 6 track 800 note sequencer, and midi. Sequential cicuits six trak midi controller project arch. Whether a sixtrak, a max, a multitrak, a spliteight or whatever names come and go. Get the best deals on sequential circuits pro audio synthesizers when you shop the largest online selection at. Sequential circuits sixtrak 5 favorite sounds 2017 synthesizer demo by rik marston 100% no talking watch in hd turn it up if you like the sounds of the sequential circuits sixtrak. It was designed as an inexpensive and easily portable scratchpad machine for trying out arrangements. Sequential circuits six trak vintage polyphonic analogue synthesiser. But there are too many unused and underappreciated six traks out there not too pass on the good word. The software allowed you to program the voices and the sequencer. Photo by jerry burch the sci sixtrak was released in 1984. It is notable for being one of the first multitimbral synthesizers, equipped with midi and an onboard sixtrack digital sequencer, hence the name.
Sequential circuit service manual andor schematics on. Sequential circuit 610 six track synthesizer sequencer service manual owners manual sequential circuit 610 six track. Synthesizer demo of the analog synthesizer sci six trak from 1984. Well, the pro8 is not really an sci product basically, the story is that the japanese manufacturer who sequential circuits subcontracted to make the six trak borrowed some of the core design and components to create the pro8 so as to make a more appealing product for their market and when sequential was presented with this changeling child, they asked.
Realizing the limitations of software, dave returned to hardware and started dave. A beautiful 6 voice vintage analog polysynth with rudimentary but very cool sequencer, multitimberal capabilities you can use it as essentially 6 different monosynths arppegiator, fairly in depth midi control capabilities for its era. It featured 6 voices, 6part multitimbral operation, a 6track sequencer, and an arpeggiator. Get the best deals on sequential circuits when you shop the largest online. This is t le memory tnree vnv also powers ui in the power detect circuit, and ui 14 in the ram protect circuit. The sixtrak was an analogue synthesizer manufactured by sequential circuits in san jose, california and released in january 1984. The six independent lfos are also synthesized by the computer. Get manuals, specifications, and demos for the sequential circuits sixtrak synthesizer. This video is a quick demo of model610, an dedicated patch editor for the ipad thats designed to make it easy to edit patches on these synths. It was the first multitimbral midi synth on the market it came before oberheim xpander. Wait state is also inserted by ui 23 to cpu pin 24 when both iorq. Actually, since building that circuit, i was informed of a much easier way to make a power supply for the multi trak. Get the best deals on sequential circuits when you shop the largest online selection at.
Sci six trak 1984, full midi, 6 vco polyphonic analogue synthesizer. Most of these replacement keys are used, but in fine condition. It is not fun to program, there is only one knob and you need to assign the parameter you wish to adjust to this knob. The sequential sixtrak turns out to be a brilliant musical instrument. Service manual and diagrams of equipment and musical instruments of sequential circuit.
The sequential circuits sixtrak polyphonic synthesizer may be labelled as a beginner model by the company, but the features and functionality make it a prime choice for any synth enthusiast. This is a compact little powerhouse of analogue warmth and character. Software was available for the commodore 64 computer, then a very popular home personal computer. Sequential circuits six trak polysynth emm mar 84 mu. Now, i have received my replacement sequential circuits sixtrak battery. It may be the little brother of the sci series but with 6 note polyphony, 6 voice multitimbral stacking and full cc midi control i rate this very highly indeed. Sixtrak battery replacement question soldering noob one more question for sixtrak owners, if youll kindly indulge me i havent soldered anything but input jacks in the past. For those of you who want to edit the sounds on the max, you will need sequentials model 920 software and an ancient commodore 64 computer or you can use mark of the unicorns unisyn software editor for macpc you can even use modern midi controllers like the oxygen8. It features a touchsensitive keyboard, pitch and modulation wheels, an 800note sequencer, arpeggiator, and 100 patch memories. Built with 48 velocitysensitive keys and the same curtis circuitry found in the companys more expensive models, the six trak boasts six voice. All modulation is mixed in software and integrated into the appropriate cv outputs to each voice. Full analog synth 6 voice polyphony utilization recess i just put my two cents on this point that repels ordinary mortals. Hands on control of all synthesis parameters in an intuitive layout special mono and. Sequential circuits pro audio synthesizers for sale ebay.
While selecting factory programs, you may have noticed the keyboard switching to. It has 6voice polyphony and a sequencer for each voice essentially. Sci sixtrak 1984, full midi, 6 vco polyphonic analogue synthesizer. Sequential circuits sixtrak polyphonic synthesizer reverb. Many similarities in construction to six trak with programming like the multi trak. We are always looking for other models not listed here.
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