| It is instructive, easy and even fun to play around with the free circuit simulator LTSpice every once in a while. In this video you will fi...
All items tagged with LED and Make (9)
| Every day we throw away tons of supposedly empty 1.5-volt alkaline (“dry”) cells. Triggered by the waste caused by my battery-powered equipm...
| German motor club ADAC has examined which data are sent, without you knowing, to the manufacturer by Mercedes-Benz B-series cars, the BMW 32...
| In the Old Days blinking an LED was done with no more than a switch or a timer IC and the inevitable current limiting resistor added. Nowada...
| The preamplifier is intended for use with dynamic (moving coil – MC) microphones with an impedance up to 200 Ω and balanced terminals. I...
| The circuit in the diagram was originally designed to monitor an oscillator, but can also be used as a general-purpose level indicator f...
| Surface mount technology (SMT) was developed in the 1980s to make possible the use of very small components that have no wire leads or pi...
| In this somewhat unusual digital voltmeter, the measurand (voltage to be measured) is digitized in an analogue-todigital (A-O) converter...
| easy-to-make reference circuit It is often interesting (if not required) to know whether an amplifier is going into saturation, or whether c...