Johnson's Techworld

This question may seem a bit odd for some of you, but the fact is that most of you do! Passenger compartments of automobiles and airplanes are essentially

Transistor is a semiconductor device invented by John Bardeen, Walter Brattain and William Shockley in 1947 and they received the Nobel Prize in Physics for this invention in

There was an excellent pass of International Space Station at 6.08 pm local time, with maximum elevation of about 83 degrees in this region. I could hear just

An operational amplifier gets its name from the original use of opamps in analog computers for mathematical operations. Op amps typically have two differential inputs and a single

555 IC was one of the earliest integrated circuits to be marketed, as early as 1971. By 1972, there were five companies manufacturing the 555 IC and it

Sometime back VU2TUM had mentioned that it is possible to trigger 10m repeaters in Australia from our region and that VU3FWG had been successful in that. Yesterday I