Simple Solar Powered LED Lantern – LEDtronics Features Include – Clear Bright 360° Illumination Long-Life LED Lamp: Lasts up to 50,000 Hours Long Operation: Up to 10 Hours on Low / 4 Hrs. on High Battery: 6 Volt / 1.2Ah / NiMH Solar Panel: 8 Volt / 300 mA / 2.5 Watt Polycrystalline Total Lumens: [...]
“LED lighting provides high efficiency solutions for architectural, industrial, domestic and marine use for installation in internal and external environments.” SDL LED Lighting and Designs – Spimin “Incandescent light bulbs are immensely wasteful, expending over 90 percent of the energy flowing through them as heat…..LEDs, they are long-lasting, rugged and many times more efficient than [...]
“Many physical processes evolve on timescales shorter than the human eye can resolve. Effectively, this means the details of how the process changes with time are lost in a blur. High speed photography, or HSP, is simply photography with extremely short exposure times,….” High Speed Photography HSP DIY Implementation HSP DIY – High Speed Photography [...]
The Original Electroids Kits Electroids Kits are fun, easy, and educational project kits that bring back the joy of hobby electronics. Each kit includes all the parts you need plus easy-to-understand, clearly written instructions. The Original Electroids Company – Info: Arduino Nano “The Arduino Nano is a small, complete, and breadboard-friendly board based on the [...]
The fig. 6.2 shows the circuit of a regulated power supply for +/- 15 V and 5 A. The output voltages are adjustable between 12 and 17 V. A tape-wound core transformer is used. It offers a better power-to-volume ratio than conventional ones with laminated cores. The voltage control is achieved by two series transistors, [...]
Parallel-controlled circuits operate as self-controlled, variable resistors, connected in parallel to the load impedance (parallel loads). They react extremely fast and also control immediately pulses and very short mains break-downs, resulting from strong loads. These devices are preferably used in TV receivers, which have a B-class operated audio output stage. Without any parallel control the [...]
The only way to improve the reception of FM-signals or particularly of stereo FM-signals under disadvantageous receiving conditions is to amplify the antenna signal. This should be made directly at the antenna, since the loss is increased meter by meter of any cable. In most cases higher line attenuations can be expected than usually calculated. [...]
Ramsey Electronics – Neat Electronic Kits Ramsey Electronics has been providing the neatest electronic products and kits for over 30 years! From AM & FM Transmitters, Hobby Kits, Video Cameras, Time & Weather Products. Educational Kits EDU8350: Super Chemistry Lab Kit KSR2: Auto-Turning Frog Robot Kit KSR4: Escape Robot Kit KSR5: Scarab Robot Kit KSR6: [...]
“Do-It-Yourself … That’s the choice I did and the reason you’ll find several schematics, mainly for tube electronics, but also some formulas for loudspeakers” Audio Hi-Fi DIY – Claudio Bonavolta Measures Conversion Electronics Loudspeakers
PIC RISC microcontrollers – Peter Luethi This website provides you helpful information about Microchip PIC 8 Bit RISC microcontrollers. Several assembler source code listings are available for non-commercial use. There are also tools for using your PC for measuring or regulating electronic applications. I’am working on several projects, e.g. a precision digital altimeter to use [...]
Mike Ellis – Electronic Projects Tutorials Complete schematics and code for a 68HC11 based frequency counter, square wave synthesizer, sine wave synthesizer, programmable filter, capacitance and inductance meter, with a digitalker speech synthesizer output. 68HC11 Function Generator Oscilloscope Block Diagram and Schematics Dual 0-15 Volt Tracking Power Supply Audio Amplifier On-Line Tutorials
From Joule Thief Artbots to Picaxe Projects. Bill and Mark Sherman are Making Things that Move. Some are Mood Beam Autopsy Make an artbot out of a Mood Beam toy. FireFly Project Make a “Jar of Fireflies” using a Picaxe Microcontroller. Bill and Mark Sherman Make Robots A two wheeled robot using foam and CDs [...]