“Printers are being designed for the living room”
Canon claims to have brought a technological edge in printers with its Full HD Movie Print that allows consumers to capture and print favourite...
“As the world talks about green products, power supply design has...
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...
TELEPHONE LINE IN-USE INDICATOR
This circuit gives a visual indication of whether a telephone line is in use or not, helping two or more people sharing the line...
RADIO/AUDIO FREQUENCY GENERATOR CUM BFO
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...
“The connect between Saraswati and Laxmi is missing”
While talking about Indian innovations and innovators, R.A. Mashelkar, former director general of Council of Scientific & Industrial Research (CSIR) and chairman of National...
Pull-Pin Security Alarm
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...
Electronic Electroscope
An electroscope is the instrument used to detect charged bodies. Here is an electronic version of the scope that is sensitive and, unlike conventional...
Nano-Ampere Meter
This circuit can measure currents down into the nano-ampere range. It is useful when building, testing and experimenting with low-power circuits, especially those operating...
BCD Frequency Meter
Here is a simple circuit that precisely measures the frequency in BCD format. The circuit is built around dual comparator LM393 (IC1), dual D-type...
8-bit Generator and Display For Microcontroller
For testing of microcontroller-based circuits, you need two test jigs: One for generating the desired bitstream to serve as the input to the device...
