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What is synth-DIY? Synth-DIY is just what the name implies. Synthesizer Do It Yourself. Many people, like me, grew up in the dawn of the analog synthesizer age (Moog, ARP, Oberheim, Buchla, RCA, EMu, Fairlight, PAIA and many others) and although we may have really wanted our very own analog synthesizer with dozens of knobs and switches they were w-a-a-a-y out of our reach financially. Now many people with a modicum of electronic skills and a renewed interest in analog synthesizers are discovering that with a schematic, a PC board and some electronic components they can do it themselves!.
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Lessons In Electric Circuits
A free series of textbooks on the subjects of electricity and electronics
Copyright (C) 2000-2010, Tony R. Kuphaldt
Master Index
Chapter 1: BASIC CONCEPTS OF ELECTRICITY
Chapter 2: OHM'S LAW
Chapter 3: ELECTRICAL SAFETY
Chapter 4: SCIENTIFIC NOTATION AND METRIC PREFIXES
Chapter 5: SERIES AND PARALLEL CIRCUITS
Chapter 6: DIVIDER CIRCUITS AND KIRCHHOFF'S LAWS
Chapter 7: SERIES-PARALLEL COMBINATION CIRCUITS
Chapter 8: DC METERING CIRCUITS
Chapter 9: ELECTRICAL INSTRUMENTATION SIGNALS
Chapter 10: DC NETWORK ANALYSIS
Chapter 11: BATTERIES AND POWER SYSTEMS
Chapter 12: THE PHYSICS OF CONDUCTORS AND INSULATORS
Chapter 13: CAPACITORS
Chapter 14: MAGNETISM AND ELECTROMAGNETISM
Chapter 15: INDUCTORS
Chapter 16: RC AND L/R TIME CONSTANTS
Appendix 1: ABOUT THIS BOOK
Appendix 2: CONTRIBUTOR LIST
Appendix 3: DESIGN SCIENCE LICENSE
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With Solve Elec you can :
- draw and analyze electrical circuits functioning in direct or alternating current
- get literal formulas and values for current intensities and voltages defined in the circuit.
- verify circuit related equations.
- draw graphs.
- get the equivalent circuit of displayed circuit
- browse an integrated documentation
- edit, save and print reports made of various elements displayed in main window
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Qucs is a circuit simulator with graphical user interface. The software aims to support all kinds of circuit simulation types, e.g. DC, AC, S-parameter, Transient, Noise and Harmonic Balance analysis. Pure digital simulations are also supported.
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RPG that offers "races" but that are nonmaterial:
"In Earth Eternal, you choose from over 20 unique and customizable races, each with their own exciting history and backstory. Will you play as the devious and crafty Bandicoon? Or the noble and proud Foxen?
Races in Earth Eternal are purely cosmetic. This means any race is just as effective at a class as any other race. Your Ursine Mage can cast spells just as well as your friend’s Grumkin Mage!"
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This simple circuit uses a one watt power supply module from Bias Power, model BPS1-08-00. The tiny module can crank out about 8 volts DC, fully isolated form the AC power line, whose voltage can range from 85vac to 250vac. The DC output of the module is fed to two one watt white LEDs, from Cree, wired in series. A 13 ohm ½ watt resistor in series limits the LED current to about 125ma. Although the LEDs are rated at one full watt, the circuit routes only one half watt into each part. The result is more than enough light for a night light and it should allow the light to last for many years.
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Blue LEDS that pulse to music, respond extremely well to bass, turn any place into a disco/dance floor
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Table for Electronic Dreams is a table which reveals the hidden electrical activity of nearby electronic objects. Through this interaction, people will develop a greater awareness of the invisible workings of their electronic devices and the limits of human perception.
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This instructable tells you how to create real electronic circuits using a textile perfboard, (a piece of conductive fabric) instead of a rigid perfboard. You will be able to sew resistors, capacitors, LED's, integrated circuits and many other components. This is a list of what you will need:
- textile perfboard (you can find it on www.plugandwear.com)
- traditional components (not SMD!) like resistors, capacitors, LED's, IC's
- sewing needle
- sewing thread. I suggest shrinking sewing thread, you can find it in embroidery shops or on www.plugandwear.com . It is a special sewing thread that shrinks 30% in lenght when exposed to heat.
- pliers
- wire cutter (or nail trimmer)
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Our first open source Homeland Security non-lethal weapon project - The "THE BEDAZZLER: A Do-it-yourself Handheld LED-Incapacitator".
After attending a conference where the $1 million "sea-sick flashlight" (named "THE DAZZLER") was demonstrated by the US Dept. of Homeland Security, we decided to create our own version. For under $250, you can build your own dazzler and we've released the source code, schematics and PCB files to make it easy. A great Arduino project for people who really like blinking LEDs. We also added in a mode selection so you can put it into some pretty color-swirl modes, great for raves and parties!
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We are a company with 55+ years expertize in textiles and textiles machinery. 95% of our machines are developed and built by us. Our fabrics and tapes are generally made with a process developed in house.
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Arduino is an open-source electronics prototyping platform based on flexible, easy-to-use hardware and software. It's intended for artists, designers, hobbyists, and anyone interested in creating interactive objects or environments.
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This is a basic digital project using a 4017, 555 timer and some LEDs. The 4017 is a decade counter that counts down one everytime it is clocked by a +5VDC (HIGH). By using a 555 timer in an Astable or occilating mode, it can clock the 4017 at a specified interval infinately. Once power is applied, the 555 will continually clock the 4017 lighting one LED at a time. Since the 4017 can only count down from 9 to 0, it was necessary to double up the LEDs on the outputs of the 4017. The top center LED is a common on the first count down. All other pairs from that point at tied together on corresponding pins. Only 9 through 1 was used, decade 0 was not used basically because it would have been one too many.
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Everyone has to start somewhere, and LEDs are tons of fun. These three projects are great for anyone just getting into electronics and wiring.
Enjoy, and learn well young grasshopper. (Asian Kung-Fu bow)
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We’ve got three tutorials to help you learn how to convert audio signals to LED light. One tutorial lights the frosted edges of plexiglass. Another uses signals directly from a sound card. Which ever method you choose, the result will be stunning.
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When wiring an LED you have three options
wire each LED single with its own resistor
wire multiple LED's in Series with a single resistor
wire multiple LED's in Parallel with a single resistor
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Old Version - The Guru - Single led - Series leds - Parallel leds
.:GURU
Supply Voltage
VOLTS
Voltage Drop Across LED
VOLTS
Desired LED Current
MILLIAMPS
How many leds connected
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The Guru - Single led - Series leds - Parallel leds
Supply Voltage (VOLTS) / Voltage Drop Across LED (VOLTS) / Desired LED Current (MILLIAMPS) = How many LEDs connected