John Curl's Blowtorch preamplifier part II

[simon7000]

Demian,

Do I take that to mean you do not recommend learning bomb disposal by trial and error?

ES

[KBK]

Originally Posted by Speedskater

In US houses it's an either / or requirement.
Either it's measured under 25 Ohms or drive two ground rods.
Most residential electricians go with two ground rods.

To state the obvious:

And.... if the audio systems sounds bad, pull the rods, clean them, and re-drive them. Oxidization is a serious problem that can crop up disturbingly early in the given electrical install.

We are talking about impedance issues across a large load, and under complex outdoor environmental conditions...are we not?

When I go to a audio show I try to, if I can, to get across to the given show organizers..that they will probably have much better results at the show, regarding participant and public satisfaction if they do one thing. It can be inexpensive or is the most inexpensive upgrade they can ever enact, regarding 'sound quality' for a show. But it will cost money and it might be, due to the given hotel's operational guides, it may have to be done by the hotel's electricians. the given electrician may not see the sense in it, and the show organizer may have to add their own electrician into the mix to make sure it is actually done properly --not just billed to them (as an additional expense) properly.

And that is to have ever single breaker and every single screw connection in the given distribution boxes..reset by an electrician. this can avoid some of the noise, degradation and electrical failures at the given show. (once again, obvious stuff)

[martin clark]

Originally Posted by KBK

And.... if the audio systems sounds bad, pull the rods, clean them, and re-drive them. Oxidization is a serious problem that can crop up disturbingly early in the given electrical install.

Peeing on them is easier. And pretty much guaranteed to work.

[hitsware]

Originally Posted by martin clark

Peeing on them is easier. And pretty much guaranteed to work.

The right fault conditions could be painfull though

[john curl]

Is urine normally conductive? Makes sense.

[john curl]

Electric fences are interesting, too!

[hitsware]

The right attitude might make it erotic ?

[DF96]

Originally Posted by john curl

Is urine normally conductive?

Most aqueous solutions are conductive, to some extent. Very pure water is a much worse conductor, so conductivity can be used as a check on water purity. I seem to remember my ex-colleagues in the power industry use this technique to monitor boiler water, which has to be pure to reduce corrosion.

[abraxalito]

Originally Posted by john curl

Is urine normally conductive? Makes sense.

The urine itself is conductive but the stream as a whole isn't as it normally breaks into droplets towards the impact zone - air is an excellent insulator.

[john curl]

First, of course, urine is conductive, all tap water is to some extent, but is it EXTRA conductive, like salt water, for example. In any case, just wetting the ground with water should increase conductivity, because of the added impurities to the water from the ground.
Second, don't try an electric fence, sometimes the 'stream' is not broken up as much as you might predict. I have seen pictures of the results.