Skip to content

Music

Ed’s Back – Live at the Grand West Arena

Good news for South Africans!

The group Live will be performing at the Grand West Arena on the 7th November.   Rumour has it that Ed Kowalczyk will be appearing with them as lead vocalist – remember him, he that went solo for a while. Although Chris Shinn replaced him after 2012, Ed is back.


Grand Arena at GrandWest Casino, Cape Town, South Africa

Live at the Chilli Cookoff 2010 - courtesy Gitman00 at en.wikipedia
Live at the Chilli Cookoff 2010 – courtesy Gitman00 at en.wikipedia

Live are from York, Pennsylvania. Their rock style is familiar to many South Africans. Ed Kowalczyk left in 2012, replaced by Chris Shinn (ex-Unified Theory).  If you are not familiar with the group please catch up here at Wiki and don’t forget to donate.  🙂  –  Discography included.

Oscillators, amplifiers, light control

Chapter Two – Some more stuff… oscillators, amplifiers, light control

Who said oscillators aren’t interesting.  Considering it’s the very foundation on which all digital electronics is based it must be.  Think of the extremely powerful desktop computer, that laptop or tablet – it all begins with a train of pulses called clock-pulses. And how did that all start?  With an oscillator of course.

Parallel rod push-pull 120MHz oscillator
Parallel rod push-pull 120MHz oscillator.
Retrieved October 12, 2014 from W. W. Smith, ed. The Radio Handbook, 5th Ed. published by Radio, Ltd., Los Angeles, 1938, p. 427, fig. 23

And then we have amplifiers. What exactly is an amplifier?  An amplifier can be used for many things and strangely enough although we see and hear about audio amplification many people aren’t aware that we have amplifiers for light, microwaves, radio, we even have a thing called a magnetic amplifier.  But all amplifiers serve one purpose – to amplify a small signal into a huge or even a ginormous one.  LASER – Light Amplification by Stimulated Emission of Radiation. How about MASER – Microwave Amplification by Stimulated Emission.