| What must be the simplest possible radiation meter consists of just a BF245 JFET and an ohmmeter.
Burkhard Kainka (212)
| The author found that a long-neglected gel battery in a hand-held vacuum cleaner had gone high-resistance. It took some effort to make it us...
| Relays or contactors are often used to switch AC-powered inductive loads such as motors, valves or electro magnets. When the device is switc...
| Taking apart a solar-powered lamp revealed a single-transistor voltage converter circuit that allowed an LED to be driven from a 1.2-V cell....
| To understand the basics of electronics, you have to go beyond high-level block diagrams. Now and then, you need to look at the details insi...
| You are familiar with circuits for constant-current sources. Now it’s time to examine ways to generate stable voltages. Of course, you can a...
| Designing electronic circuits usually starts with studying the data sheets of complex integrated circuits. However, you should not lose sigh...
| Os dispositivos electrónicos estão cada vez mais complexos, sendo que os circuitos mais simples e os transístores discretos são praticamente...
| Electronic devices are becoming more and more complex, with simple circuits practically a thing of the past. We aim to get back to basics wi...
| Electronic devices are becoming more and more complex, so let's get back to basics. In this article, we present some interesting experiments...