MATRIXSYNTH

DIY Spring Reverb Module

flickr By Tom.Whitwell

Details via Muff's

"I was just about to buy an A199 spring reverb when I decided to save 4hp of space and build my own.

The circuit is based on Roy Mallory's tech note and tone control, which is useful - a symmetrical cut/boost of bass and treble. The drive, recovery, tone and blend buffer take the four amps in a TL074.

The gain on the drive circuit is reduced quite a bit - R10 is 660R rather than 62R (it's R1 in Mallory's article), and the recovery circuit has a variable drive.

I put a couple of phono jacks on the back of my Doepfer case, so it's easy to plug in an external tank - a nice rich 6-spring 9EB2C1B (mainly because I built the circuit with the 8EB2C1B from a fender amp)"

MusicThing · DIY Spring Reverb Module

Emulating Modular Synthesis With Instrument Racks

YouTube Uploaded by eArtrash on May 30, 2011

"Nasty Sh1t!

This isn't a tutorial..it's just a sample of a filthy instrument that I created in Ableton.

I might upload the project if I get enough requests. :)"

CAUSTIC for Android - Overview

YouTube Uploaded by CausticApp on May 30, 2011

"Demo video showing an example of what can be done with CAUSTIC Electronic Music Rack for Android devices.

This is just a quick overview of how to the different machines to put together a song loop. I'm hoping to create more in-depth videos explaining some of the more complicated machines like the SubSynth and Sequencer in the near future. Stay tuned.

The app is available for most Android devices, and there's a full demo version with no time restrictions. To unlock full-version features (song save/load/export), use the in-app purchase option.

https://market.android.com/details?id=com.singlecellsoftware.caustic"

EDP Wasp Synthesiser with Original Box

via this auction

"Here is a rare Wasp synth made in Oxford by Electronic Dream Plant in the 1970s. If you are looking at this you know how rare and wonderful theses old things are and how collectable they have become. Condition wise there are some cracks around the casing on the corners but nothing major, the synth works off batteries (never tried it with the mains) and the speaker and speaker/phones outputs work as they should. The touchsensitive keyboard has a scratch but this does not affect play. The Wasp has no dreaded 'drone' where the notes do not cut off, it sounds great! Some of the pots are a little crackly but work properly, the only issue is that on oscillator two the 'sawtooth' has a very weak signal compared to the 'squarewave' - it's hardly there, probably a dirty pot or loose connection. The knobs were replaced years ago with very expensive and accurate repros as all the originals had lost their yellow caps, all else is original. As with all vintage synths I'd recommend a service to get it tip top but this is certainly a working unit and sounds fantastic with a particularly evil filter!"