Electronics – Squash Practice

Coax, Connections, Calculations, Coils and CATV Cable

on June 29, 2019June 29, 2019 By Gary Rondeau 5 Comments

I've been using a spool of RG-6 CATV cable of dubious quality for quite a while as my go-to source of antenna feed line because I happened to have the spool in my junk collection. Using the 75 Ω cable got me thinking about why we care what impedance the cable is and how matching [...]

Fast Avalanche Transistor Pulser

on December 18, 2016June 7, 2019 By Gary Rondeau 2 Comments

You never know when you might need to measure the speed of light. When the time comes, this avalanche transistor pulse circuit will come in real handy. This is one of my favorite little bits of electronics because you get such great performance out of a single common 5¢ transistor that is abused for this purpose! [...]

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