Cold Plasma Speakers

be stuck up your arse ?

I bet that would make some noise !

Graham

First, you have to figure out where in Hell you can get some "cold plasma". Plasma is hotter than hot, almost by definition.

Cheers! Rich

Primarily because this is sci.electronics.basics, where there is no such thing as a stupid question.

And please learn to bottom-post.

Thanks! Rich

Sorry. I think "plasma" is the wrong word, then. By "plasma speaker", I meant a speaker that generates sound by using electricity of an analogous frequency and passing the electric current through the air. In order for electricity to flow through a tough insulator, like air, the voltage needs to be at least 50 kV. If the electric current flowing through the air, has a frequency of 1,000 Hz, it will produce an audible 1,000 Hz tone.

John

True if you drive the plsma arc with straight audio.

But when a carrier is used, or - if there is a calass A amplifier mode available - the zero audio state is a 50% current AKA "Bias". Then the audio, ac wise, modulates the current to be greater or lesser.. etc.

Angelo Campanella

Look here Mr Pea Brain. You appear to recognise that this 'plasma' will need both volts and amps.

That means power, which means heat. So, no cold plasma.

Graham

Of course ! Power has no polarity.

Graham

"Mike Rieves" wrote in news:O2aEg.14551$ snipped-for-privacy@bignews3.bellsouth.net:

A sociopathic swine, and contemptable piece of human waste, by the name Mike (Porky) Rieves, who is demonstrably devoid of moral conscience and all generally accepted standards of ethical behavior, just farted and bestowed upon us the above echo.