“The Overtone Violin is an entirely custom built, radically augmented musical instrument that preserves the traditions of violin technique while adding a whole new set of possibilities for the musician. The first performance with the Overtone Violin was at the Dutch Electronic Art Festival (DEAF’04 - http://www.deaf04.nl/) in Rotterdam, Holland.”

Overtone Violin site

MIDIbox SID is a diy project for housing and controlling a SID chip with the MIDIbox platform.

MIDIbox SID V2 Bassline Demo #5 from Thorsten Klose on Vimeo.

video discovered on matrixsynth

Internal wiring isn’t quite as neat as it could be but…oh well. All of the guitar signals are made with shielded cable. The cabling for the pots, toggle switch, power supply and tap footswitch are unshielded since they are all DC control voltages or DC supply.

Mounting the module pcb to the main pcb is the most difficult part of the conversion. It’s hard soldered so if this baby breaks, it’s pretty much game over.

Line6 Echo Park delay pedal in a custom enclosure. The pedal has been modified to include “true bypass” and a carling tap tempo footswitch. The power supply was also modified to accept either 9VAC or 9VDC …and it also has BIG KNOBS!

I’ve been using it this way for a few years with no labeling (I finally memorized the controls after a while) and no switch for the analog and tape emulation modes. It has been permanently set to “digital” for a long time.

The picture below shows an added toggle for delay mode select (analog/digital/tape). Finished this yesterday.

After I added the toggle, I decided to finish the job and label everything. Done!

The Delta VCF from MegaOhm audio looks to be a clone of the filter from a Korg Delta analog synth. I don’t see a way to order on the site so I’m assuming you need to contact him/them for orders.  The modules look like they will fit in a “dotcom” (sythesizers.com) format and/or vintage Moog but the MegaOhn audio site does not explicity state the dimensions.

From their site:
“The Delta VCF is more than just a clone of the filter section from a vintage synth of the same name. All of the supporting circuitry has been changed and additional features were added. It also has a behind the panel normallization scheme which results in extremely powerful and interesting sounds.”

Read the article from EETimes here

.

“researchers at the Massachusetts Institute of Technology (MIT) have combined digital signal processing with a removable sound board, enabling the Chameleon guitar to change its sonic characteristics by changing the type of wood used for the sound board. The design also retains the same guitar body, neck and frets”

An article on the MIT website is here.

thanks to fansofcollision for finding this

Strymon has announced immediate availability of a mechanically redesigned SVpre for the Line6 Spider Valve HD100. The tube preamp had to be reworked to fit within a mechanical design that differed from the Spider Valve combos.

by ladyada. A very faithful TB-303 re-creation available as a diy kit.

The Synthesia team have created an embedded digital/analog hybrid synth running a Linux GUI. Looks pretty cool so far. I don’t agree with the choice of the CEM3389 IC to drive the analog section however, as these chips will be extremely hard to come by and extremely expensive. The osciallators are digital, being implemented in a Xilinx SPARTAN fpga.

First discovered on the excellent Matrixsynth blog.