MATRIXSYNTH


Saturday, December 21, 2024

MicroCarol Wave of the XT Bells


video upload by Miguel d'Oliveira

"Don't judge me.
The sugar from 5 rum-soaked mince pies is to blame here.3"

Zaturn Modulation


video upload by gotharman

"Experimenting with a new modulation/input source select system, which feels a bit more direct, I think.
The forthcoming Ladder filter board is used for the demo :)
www.gotharman.dk"

ESK - Korg Arp Odyssey + Sequencer


video upload by Metunar

"Sound demo with a Korg ARP Odyseey triggered by an analog sequencer. There are no effects used. And yes, I had some extra fun with an oscilloscope modular patch."

https://www.metunar.ch

Roland GO:KEYS 3 // Brilliant For Beginners and Pros


video upload by Woody Piano Shack

"Demo, review, tutorial and buyer's guide of the ROLAND GO KEYS 3 KEYBOARD SYNTHESIZER. Showcasing all the standout features

► DESIGN AND QUALITY
► KEYS
► ARRANGER AND STYLES
► SCENES AND TONES
► SOUNDS, PIANOS, ORGANS, SYNTH
► CHORD SEQUENCER
► ARPEGGIO
► WHO IS THIS FOR?

Stay tuned for am all-playing no-talking demo. Comprehensive review and comparison with Roland GO:KEYS 5 coming soon.

MORE WOODY PIANO SHACK
https://woodypianoshack.com"

Casio SK-5 Compact Sampler Keyboard

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


via this listing

Additional Perfect Circuit listings

Arturia Matrixbrute Analog Synth w/ Flight Case

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


via this listing

Additional Perfect Circuit listings

Arturia PolyBrute Polyphonic Analog Keyboard Synthesizer

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


via this listing

Additional Perfect Circuit listings

1978 Roland Jupiter 4 49-Key Synthesizer SN 790790

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


via this listing

Additional SYNTH CITY Listings

Pics of the inside below.

"Closet clean 1978 Roland Jupiter 4! By far the cleanest example to come through our doors. Just fully serviced and calibrated by our in-house technician along with replacing all of the lilac electrolytic capacitors. Includes original owner's manual! We love that original 70s Roland synth look with the nice chunky design, shiny knobs and preset control panel below the keys, one of the later models with this aesthetic. The sound is nice and warm due to the VCOs but it is easy to see how Roland's other polysynths evolved from this point. The layout is very similar to the Junos with a simple but effective control scheme that is hard to make a bad sound with. Of course this is a very early computer controlled synthesizer as well, allowing saving of 8 user presets, compuphonic! Its truely an amazing experience playing the Jupiter 4. It is incredible sounding and such a breeze to program, don't forget the amazing ensemble effect and built in arpeggiator. The LFO can even reach up to audio rate allowing for some awesome polyphonic filter oscillator FM. Its easy to see why the Jupiter 4 is an absolute classic. Serial No. 790790"

Roland Juno-60 61-Key Polyphonic Synthesizer SN 303771

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


via this listing

Additional SYNTH CITY Listings

"This synthesizer is in great shape for its age and works perfectly. There is some light overall cosmetic wear mostly in the form of light blemishes throughout. Please see the detailed images. Everything is working great and sounds awesome as usual!

This Juno 60 was just serviced by our in-house technician:

-Replaced electrolytic capacitors in power supply
-Removed and cleaned all pcbs, chassis, inside of chassis, keybed etc.
-Serviced panel boards: cleaned all faders and switches, re-soldered all faders and controls
-Serviced bender assembly: cleaned all controls and switches
-Serviced output board: re-soldered output and interface jacks, cleaned tune control, cleaned level/memory protect switches
-Cleaned pin headers and connectors throughout
-Replaced AC cable"

Moog Source Monophonic Analog Synthesizer with Patch Memory SN 2499

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


via this listing

Additional SYNTH CITY Listings

"The Moog Source is a monophonic Z80 microprocessor-controlled analog synthesizer manufactured from 1981 to 1985.

The Source was Moog's first synthesizer to offer patch memory storage. The design was also the first (and only) Moog synthesizer to feature a flat-panel membrane keyboard to replace the standard buttons, knobs and sliders, along with multihued panel graphics that were very different from anything Moog offered at the time.

Service notes:

Power supply: replaced electrolytic capacitors, cleaned off old heat sink compound and added fresh HSC
Processor PCB: replaced electrolytic capacitors, replaced memory battery. Cleaned CPU IC pins and socket, cleaned pin headers and connectors, cleaned flex ribbon cables from control panel switches
Analog PCB: replaced electrolytic capacitors, repaired broken circuit trace damaged by impropper hardware used on back panel, cleaned all pin headers and connectorts, cleaned pins and sockets on several op-amps

Other service notes:
-Cleaned volume and tune controls
-Cleaned optical sensor/control wheel
-Reglued wooden panels to chassis to prevent rubbing against control wheel
-Cleaned internally and removed debris
-Cleaned chassis and switch panel
-Cleaned knobs and mod/bend wheels and mod/pitch pots
-Calibrated tested several hours then recalibrated
-Reloaded and saved factory presets to memory"

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