Categories
2x70W amplifier
2x70W amplifier STK4211V. rn
24mW amplifier LM386
The LM386 is a power amplifier designed for use in low voltage consummer applications.
In-out thermometer
In-out thermometer with 16F873A microcontroller.
On-off sensor circuit
This circuit can be set up in any computer you want to switch on/off by bringing your finger or any object close to the sensor.
128x64 display for Pc
This circuit allows us to connect a 128x64 display with the PC parallel port.
Calendar clock
With the already known microcontroller PIC 16F873A and the integrated circuit DS1307 we have built this calendar clock.
10 amp variable power supply
With the familiar LM338K voltage regulator and a high-powered transistor, the 2N6031, we have set up a powerful 10-amp variable power supply.
How to build a computer Part 1
To assemble a computer part by part is actually simpler than it looks like. You only have to follow basic rules.
How to make printed circuit boards Part 3
Now we’ll prepare the glass fiber. We are going to cut it a bit bigger than our design, leaving a small margin.
Twilight switch
Twilight switch with 12F629 microcontroller .
Led clock circuit
This led clock circuit is quite complicated to assembly, because of the great quantity of connections it has, but the result is quite visible.
How much does it costs to run a computer?
We have compared 4 PC and their consumption, to see how much money we spend on electricity.
Circuits
Circuits made with a professional design program
Tested
All circuits described have been tested
Tutorials
We extended the tutorials section periodically
Scalextric
Circuits of two and four cars made with design program
Photos
Scalextric photos