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Zener tester circuit – Circuit Schematic
Zener tester circuit
Here is a handy zener diode tester which tests zener diodes with breakdown voltages extending up to 120 volts. The main advantage of this circuit is that it wo...
Clock using a Hard Drive – Circuit Schematic
Clock using a Hard Drive
Have an old hard drive that no longer works? As long as it still spins up chances are you could build a clock out of your old hard drive! You will need some ele...
Birthday Heart circuit – Circuit Schematic
Birthday Heart circuit
This is a birthday heart circuit. No much description is available but you can use your expirienced imagination! ;)...
Lazy ISP Socket Adapter – Circuit Schematic
Lazy ISP Socket Adapter
The Lazy Adapter is composed of a 20 pin DIP socket, a 20 pin DIP header, and 6 pin ISP header, and a small phenolic circuit board to hold them all together. Th...
Scientific Calculator Watch – Circuit Schematic
Scientific Calculator Watch
The uWatch comes as a kit of parts. All of the electronic SMD parts on the PCB are pre-assembled. The uWatch is normally in sleep mode and powers down the LCD t...
Coil Driver/launcher circuit – Circuit Schematic
Coil Driver/launcher circuit
This is a fun and non-dangeros project for those people who like to throw projectiles magnetically. It simply works by placing a ferromagnetic projectile at one...
Casio cable for PC – Circuit Schematic
Casio cable for PC
Clean the surface to be glued components to the printed circuit. Use a sheet of very fine sandpaper to smooth bumps fortunes. First attach the resistors and dio...
Casio cable for PC – Circuit Schematic
Casio cable for PC
Clean the surface to be glued components to the printed circuit. Use a sheet of very fine sandpaper to smooth bumps fortunes. First attach the resistors and dio...
Electret Circuit
Arcing completes a circuit -- closes a system -- between two voltage potentials. When arcing occurs, two oppositely charged static voltage potentials can ca...
Swiss ML Testakica
The Unit is started by hand by revolving the two disks in opposite directions and continues to move without further input. This device has only two moving part...
H2 PWM Generators – Circuit Schematic
H2 PWM Generators
The Generator cell must have reasonable surface area on the Plates to generate a reasonable amount of Hydrogen/Oxygen. And a Typical construction would use Stai...
H2 PWM Generators – Circuit Schematic
H2 PWM Generators
The Generator cell must have reasonable surface area on the Plates to generate a reasonable amount of Hydrogen/Oxygen. And a Typical construction would use Stai...
Cash Register circuit – Circuit Schematic
Cash Register circuit
The Electronic Cash Register (ECR) keeps track of sales transactions quickly and effectively. An abundance of PLUs (Price Look Ups) and department keys accommod...
EMF radiation Sleeping Aid – Circuit Schematic
EMF radiation Sleeping Aid
Many people experienced sleeping well in natural surroundings, into a tent or a wooden hut. This fact is due not only to the healthy atmosphere but also from ou...
Domino Box trick – Circuit Schematic
Domino Box trick
The design uses tactile sense (or rather, neural sense) to reveal the contents of a box. The box contains 4 shapes, as in a child`s shape sorter. The conjurer a...
SuperSpice – Circuit Schematic
SuperSpice
SuiperSpice`s philosophy is centered around the edit schematic, run simulation, view waveforms, probe signals, view waveforms, edit schematic cycle. All key iss...
Micro-Cap 9 – Circuit Schematic
Micro-Cap 9
Micro-Cap 9 is an integrated schematic editor and mixed analog/digital simulator that provides an interactive sketch and simulate environment for electronics en...
AIM-Spice – Circuit Schematic
AIM-Spice
SPICE is the most commonly used analog circuit simulator today and is enormously important for the electronics industry. SPICE is a general purpose analog simul...
Combinational Conjuring Trick – Circuit Schematic
Combinational Conjuring Trick
The simple circuit of Fig.1 emulates a similar conjuring trick which sells for hundreds of Pounds. The trick seems to do the almost-impossible from an electroni...
Combinational Conjuring Trick – Circuit Schematic
Combinational Conjuring Trick
The simple circuit of Fig.1 emulates a similar conjuring trick which sells for hundreds of Pounds. The trick seems to do the almost-impossible from an electroni...