Have you ever accidentally left your front door ajar and had a pet or your little kid escape? Here is a smart solution to...

Higher analogue bandwidth, higher sampling rate, higher memory points and faster response are the biggest trends seen in oscilloscopes. But inbuilt support for connectivity...

This resistance meter can measure resistances up to 200 mega-ohms. The value of the resistance is indicated on a linear meter scale (0-100 uA)....

Canon claims to have brought a technological edge in printers with its Full HD Movie Print that allows consumers to capture and print favourite...

While talking about analogue design and business, evolution of electronics power supply and latest developments in power supply ICs,Balu Balakrishnan, president and CEO, Power...

This circuit gives a visual indication of whether a telephone line is in use or not, helping two or more people sharing the line...

This radio-cum-audio frequency signal generator can also be used as a beat frequency oscillator (BFO) for continuous-wave and single-sideband signals. Fig. 1 shows the circuit...

While talking about Indian innovations and innovators, R.A. Mashelkar, former director general of Council of Scientific & Industrial Research (CSIR) and chairman of National...

Here is a simple and low-cost circuit of pull-pin security alarm. While travelling, rig the alarm unit to your luggage using a home-made security...

An electroscope is the instrument used to detect charged bodies. Here is an electronic version of the scope that is sensitive and, unlike conventional...