via this auctionSee Perfect Circuit Audio (RSS) for more.
Tuesday, July 19, 2011
SONiVOX TWIST - Spectral Morphing Synthesizer
YouTube Uploaded by SONiVOXmi on Jul 19, 2011
"Introduction to SONiVOX's TWIST - Spectral Morphing Synthesiz"
Skychord SleepDrone 3 drone machine
YouTube Uploaded by bigcitymusic on Jul 19, 2011
Big City Music on eBay (RSS)
"Here is the all new Skychord SleepDrone 3. There are 3 analog oscillators with 3 volume controls and 3 pitch controls. There is also a switch for each oscillator."
ether^ra ALLFALL
YouTube Uploaded by potterpaint2000 on Jul 19, 2011
"a Buchla 200e/Serge Creature improv. http://etherra.blogspot.com/"
Copper Oxide Thermoelectric Generator Can Light LED
YouTube Uploaded by nylesteiner on Jul 19, 2011
Curios if those are the new Steiner Synthasystem modules in the background.
"A simple copper oxide thermoelectric generator can generate hundreds of millivolts. Sixteen of them in series can generate enough voltage to light an LED.
See more information at http://www.sparkbangbuzz.com
What is happening? I have spent my entire life reading whatever technical books and articles I could find and can recall seeing only one book that says anything about this device. It would be safe to say however, that an explanation could be found in the institutionalized literature. Not being presently affiliated with any institutions, I do not have ready access to most of their literature which makes the cost of reading it prohibitive. So, I will offer my own take on what is happening.
A thermocouple is generally thought of as being a junction between two dissimilar metals but it might be better to say that it is a junction between two dissimilar conductors. Touching the two oxidized wires together forms a junction of copper oxide to copper oxide. This is not where the action is. The copper oxide on both wires should be thought of as one solid conductor between the two copper wires - a very short one at that. This can now be seen as the classic two thermocouples back to back circuit. We have a copper - copper oxide junction on the hot wire and an opposing copper oxide - copper junction on the cold wire. With this in mind it is now easy to view this device as being a normal thermistor circuit.
It is easy to wonder how this device could work at all because of the copper oxide, that is between the two wires, being almost an insulator. Copper oxide however, also acts like a thermistor with a very high negative temperature coefficient. Even the "cold" wire still gets hot enough that the resistance of the copper oxide drops relatively to a very low value - enabling current to flow.
I must give credit to an older book "Simple Scientific Experiments" by Aurel de Ratti as being the one and only book I have ever seen that makes the reader aware of this copper oxide thermoelectric generator. This book also contains other fascinating stuff. It is reprinted and sold by Lindsay Publications Inc."
Buchla FM Drone
YouTube Uploaded by Oxix52 on Jul 19, 2011
"This is a drone with lots of FM. The mod osc of the 261e is modulating the frequency of the principal osc and the ZOe. The mod osc of the 259e is modulating the frequency and the morph of the principal osc. The pulse wave of the ZOe is going in to the 291e which has the frequency being modulated by one stage of the 281e."
Evans Echopet Analog Delay Unit
via this auction"Pure, dirty analog delay. The Evans Echopet is a low-fi but spectacular analog delay unit which is a breathe of fresh air in today's ultra clean digital effect days... Think of this as a poor mans Roland Space Echo if you will but I promise you won't be unhappy. Try driving the input for some distortion and even use it to run your guitar or synth's through to add some 'color'. Mono quarter in jack connections with optional foot-switch (not supplied) control."
Maplin Echorder EC444 Analog Delay Unit
via this auction
"Pure, dirty analog delay. The Maplin Echorder is a low-fi but spectacular analog delay unit which is a breathe of fresh air in today's ultra clean digital effect days."
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© Matrixsynth - All posts are presented here for informative, historical and educative purposes as applicable within fair use.
MATRIXSYNTH is supported by affiliate links that use cookies to track clickthroughs and sales. See the privacy policy for details.
MATRIXSYNTH - EVERYTHING SYNTH
