MATRIXSYNTH

Moog MG-1 MG1 with Sync Sweep Modification

YouTube via rolandsh1000. Moog MG-1s on Ebay
"Just a quick demo of a modified Moog MG-1 that will be on ebay very soon. This definitely doesn't go through all the functions (see Youtube's from Automatic Gainsay/Marc Doty for his _incredible_ series on this synth!) [see here], but just the basics. The main thing I wanted to show was the added Sync Sweep capability, which routes the Contour/EG to Tone2/Osc2 via an added switch. This can give you pitch swoops on osc2 when sync is out, but very cool timbre changes when sync is switched in.

Note: when demoing the effect of the LFO on the filter, I also had the Contour driving the cutoff, so I'd have needed to keep pressing the key to show the full effect. THIS IS EXACTLY HOW IT IS SUPPOSED TO WORK! :)"

arp_odyssey_for_sale

YouTube via ripe909. ARP Odysseys on Ebay
"a short video showing the functionality of an Arp Odyssey I have for sale on eBay."

make a CMOS oscillator in under 2 mins

YouTube via leafcutter
"A simple square wave oscillator made with a cheap and cheerful CMOS chip. It's the first chip project from Handmade Electronic Music by Nicolas Collins. I have reviewed it here: http://leafcutterjohn.com/?p=1053"

CMOS Sequencer Inspired by Handmade Electronic Music written by Nicolas Collins

YouTube via leafcutter
"A Step Sequencer controlling the volume of a guitar, made with cheap and cheerful CMOS chips. I really recommend the book Handmade Electronic Music by Nicolas Collins if you like this kind of thing. I have reviewed it here: http://leafcutterjohn.com/?p=1053"

Introducing the WRONGAMIN noise maker.

YouTube via leafcutter
"Disigned and built by Leafcutter John. Full schematic at http://www.leafcutterjohn.com

The Wrongamin is an excellent, easy to build sound maker that can create a range of sounds. From crackles not unlike the sound of a dusty old record to a deep hungry animal growl heard through several out of control AM radios.

It uses three LDRs (Light dependent resistors) to change the pitch of Three very high frequency oscillators. What is interesting about this machine is that in normal operation we don't hear the oscillators directly as they are tuned far above the highest sound a human can hear. What makes this instrument audible are the interactions between the three oscillators which project downward into the realm of our perception. Some Theramins operate on this same principle and this is where the Wrongamin gets its name.

"A Theramin can sound very wrong in the wrong hands, a Wrongamin sounds wrong in everyones hands"

If you make it please leave a comment or video comment - I want to see your creations!

John."

Roland CMU-800R, Compu Music SYNTH

via this auction

"Roland CMU-800R, Compu Music UNIT. A VINTAGE UNIT THAT CAN PRODUCE SOME COOL SOUNDS IF YOU HAVE THE RIGHT SETUP/COMPUTER. I DO NOT HAVE ANY OTHER GOODS WITH THIS AUCTION, JUST THE 800R."

You can find prior posts featuring the CMU-800R here.

CMI C.M.I Fairlight IIX

via this auction
"Fairlight IIX vintage sampler/ synthesizer. The unit is about 97% functional. The sampling input needs some work as well as the lightpen but neither of these are completely necessary to use the machine. Key commands can get you around the lightpen and having the Fairlight sample library would take care of sounds. The unit was just gone through by Synhouse and I put about $700 into it to get it tested, repaired, and up to speed. Both disc drives read discs, all 8 voice cards work properly, and the MIDI I/O works perfectly as well so you can use it with an external MIDI controller. I chose not to pursue the sampling input or lightpen fix but Synhouse will take the unit back in if you choose to do so. The monitor is suffering from the "bubbling" thing that goes on around the edges but it really doesn't look that bad when the machine is booted up. The screen is legible and works fine. It will come with all connector cables, CPU, both keyboards and OS boot discs which have all been verified and tested."