Low/High impedance article

[aron]

I like this article about impedance from Whirlwind:
http://whirlwindusa.com/support/tech-articles/high-and-low-impedance-signals/

[Fast Pistoleros]

this article I think goes over capacitive reactance pretty good - its an impedance, using both ac and dc , and not a fixed value of resistance using ohms law

I was just reading the other thread 

[PRR]

Good. Low BS.

Being too geeky, I would point out there IS an alternate system which "can" work just as well. Hi-Z sources, low-Z loads. The cable impedance is the same whichever end of the line has low Z. Instead of obsessing about Voltage, you obsess about Current. There is a minor practical problem in that casual "splitters" should put the loads in series, not parallel, which means cutting circuits and lifting commons. The other practical problem is that lines like to be worked 100r-1K, but transistor hiss favors 1K and up; tube hiss 10K or higher. But hi-to-low was used in some DIN hi-fi, particularly for tape-recorder connections.

[Kipper4]

Thanks Aron
Copied to word doc for later reading.