Any movement that swings the pendulum sensor triggers this alam turning a relay on and off. The on and off rate of the relay is determined by components that can be varied.
Neon lamps are used in many electronic circuits as indicators or important active elements because their electric characteristics (negative resistance) make them ideal as trigger devices in timing circuits or waveform generators. See in this article how the neon lamp work and some practical applications.
The small components used in electronic equipment can’t stand alone without any physical support. They need some kind of support to keep them fixed while at the same time providing an electrical connection with the rest of the circuit. See in this article how this is made usin a printed circuit board and the solder.
Many readers are confused when analisying a circuit, trying to say if the elements are wired in series or in parallel. This articles explain the diferences.
This project was originally published in a Brazilian magazine and after, translated to English to be part of y book CMOS Projects and Experiments. The circuit is simple and useful, producing a square wave signal for tests.
When looking for a device to a CMOS project the reader must to know the correct type by the function. This article is a table with all themain function we can find in CMOS Ics. A very useful information for all.
Noise Limiter (CB946E)
This circuit cut the noise peaks by means of diodes so that they do not appear in the output...
Bass Boost (CB945E)
This circuit was found in Italian magazine (1988), but can be mounted with ease even with the...
Rumble Filter (CB944E)
Rumble is a low frequency rumble that occurs with turntables. If the reader recovers recordings on...
Scratch Filter for Turntable (CB943E)
The scratch is the noise of scratching or scrape that occurs when scratched vinyl records are...
4093 Oscillator (MSB0125E)
This oscillator can run in frequencies up 10 MHz depending on the Power supply voltage. The 1 µF...
Decade Counter (MSB124E)
This one-digit counter is part f the samples bench of the MultiSIM in one of its versions. The...
Simple Timer Using the 555 (MSB123E)
This simple timer can be used in many applications such as egg timer. The LED glows up when S1 is...
Ultrasound Emitter (MSB122E)
The circuit shown by the figure below can produce signals in the range between 20 kHz and 30 kHz....