Go Back   Home > Forums > Blogs > RJM Audio Blog

If I put my notes here, I might be able to find them again later!
Rate this Entry

A poll. Basic electronics and DIY audio.

Posted 2nd April 2013 at 01:46 AM by rjm
Updated 4th May 2013 at 10:54 PM by rjm

It came up at the help desk, but I want to put this before diyaudio.com members generally:

I feel strongly that people who build audio equipment as a hobby should take it upon themselves to obtain a basic understanding of both the practical and theoretical aspects of electronics. Take a trip to the library and read through the first couple of chapters of electronics textbooks, that kind of thing.

It's more than just the safety aspect, I think of it as a basic necessity...

So, how many people here are familiar with the following statement?

The impedance of a capacitor is -j/([omega]C)

Familiar as dirt? Never heard of it before?
Views 912 Comments 2
Total Comments 2


  1. Old Comment
    dimkasta's Avatar
    While this makes sense, I expect most DIYers to be more on the "following instructions" part of electronics. Not only because of lack of interest, but perhaps because of lack of time.

    Not to mention the mathematical background required to understand or appreciate some stuff like the imaginary unit in the above statement...

    That been said, I would be happier to see more people trying to understand how the various diy projects work rather than following blind instructions. Like in the case of Salas PSU where you got a main framework, but you still got to work a bit and understand it to make it work for you.
    Posted 2nd April 2013 at 08:30 AM by dimkasta dimkasta is offline
    Updated 2nd April 2013 at 12:44 PM by dimkasta
  2. Old Comment
    rjm's Avatar
    Thinking about it a bit more, perhaps I was over-zealous.

    I would be happy if people basically understood what impedance was, and how it relates to the simplest circuit elements like coupling capacitors, voltage dividers, and so on.
    Posted 4th April 2013 at 03:00 PM by rjm rjm is offline

New To Site? Need Help?
Copyright 1999-2017 diyAudio