It occurred to me recently that although I named this site RF with care (for reasons I definitely cannot recall any more), I have not really written here anything RF or EM related in any way. So to start it…
Category: Electronics
CM102 Soundcard – The Aftermath
Truth be told, this project has been done for months. In the meanwhile I was doing endless job interviews, switched a job and in between life tends to get in the way. However this project turned out cooler than expected,…
Easy On The Sound-Card, Extra Capacitors
This project actually got off to a slow start. It started from a simple idea of making a high-end Digital To Analogue (DAC) converter, more commonly known as a sound-card. So the research began in three main websites: All of…
Fix Your Cheap Ebay Ordered Drone
So a friend of mine brought over a drone he ordered off Ebay. He complained that it doesn’t fly anymore. So I looked around and saw that the battery was all bloated up. Told him that I need to replace…
Final Touches And Laying it All Down
Aside from going to production, there are only some minor changes left to do with the circuit at this point. So sadly, this is the last post about this short project. In this post I will review some minor changes…
Choosing Your Components (Just) Right
Enough with circuit theory for now, although I haven’t even began to touch the basics on that subject. Only in the area of feedback circuitry there are tons to know and explore about control theory, stability and various applications. These…
Just a bit about amplifiers
Following the previous post, this post will mostly discuss how amplifiers work and just a few words about class-D amplifiers. The software of choice, for the schematic work, was KiCad. This was just because of some arbitrary roam on the…
3D Who?
Whoa! Who expected for some spare time around for this one! The story behind this begins with my Dad. He tends to fly a lot. And during these long flights he tends to binge the c***p out of movies, series…
Variable resistors in QUCS
While designing a 3-band equalizer, using QUCS (view previous post about QUCS here), the need for variable resisors came up. As the current versions of QUCS still don’t support EVALUE components, it was impossible to implement voltage controlled resistors (i.e.…