'Biefeld-Brown effect' based full range drivers

[el`Ol]

Hello Indalhc!

Here is a nice site for hifi rebels:

http://www.ambiophonics.org

[Indalhc]

Originally posted by CV
Why the hell can they not just test these things in an evacuated tube?
cheers

This would be interesting to know for someone living or wanting to live on the Moon d:
(the 10% gravity compared to earth could be special for sure)

Talking vacuum: If one added a grid between the electrodes of a Biefeld-Brown based
transducer (operating in open air at atmospheric pressures), one will then most likely have
a very high voltage swing capable audio amplifier component, with an otherwise similar
function to that of a thermionic vacuum tube.

Originally posted by classd4sure
Far out. If you keep talking like that though I think Sony or the RIAA is going to end up rubbing you out

Two words, Open Source

[Indalhc]

Originally posted by el`Ol
Hello Indalhc!

Here is a nice site for hifi rebels:

http://www.ambiophonics.org

Thanks for the link L! Lots of interesting things going on

From the Abiophonics site <<Fortunately, it does turn out that only two recorded channels are in fact needed for realistic music reproduction (more are actually detrimental) and it is the purpose of this book to show why this is so and how to do it.>>

My proposed 'plasmawall of sound' only needs one recorded channel, with some minor additional picture recognition data for recording the phase angles and distance. However the processing related to the playback could be a little more dense. In five years time though, no problemo

[Indalhc]

If the plasma wall was rated 40W/square feet (this could appear to be a lot on a wide wall - it is for headroom - and one would seldom cover the whole wall simultaneously with audio program), it would have 280 mW/square inch. At full power, if one put ones hand onto the audio plasma, one could cover something like 30 square inches. With 40.000 Volts and 200 micro Amperes (.00694 mA x 30 inches), one might have 8 Watts of power at the surface that hand.

Touching the audio plasma wall should at most not feel any different than that of the occasional clothing/weather/carpet-static electricity discharge.

More often touching it should only give a tickling, and at this low power the eventual ozone production should be minimal - practically non-existent.

Now, I could still need some help with a solid state Biefeld-Brown audio modulator and plasma driver design (I have no immediate plans to use it for aviation or space-flight d:

[Indalhc]

Breaking News - We Have Sound

I now have a functional Biefeld-Brown effect based transducer running
frequency modulated at 10kHz. Even at this early stage I estimate
it to be more efficient than any conventional transducer, in that it has
no mass to move around, without waste of energy in moving magnetic
flux etc - it drives the air practically loss-less, directly.

About the safety of this transducer. At the cathode, that is its outer most
part, most of its high voltage energy is already spent, so it is safe to
touch, almost not even a tickle (Note to Lifter experimenters: my 'pixel sized'
module is very tiny, operating at nano Amperes, your modules (those based
on computer monitor PSU's and others) are most likely lethal to touch - anywhere,
especially at the high voltage emitter/anode).

With its anode a bit deeper inside the wall, it would normally be safely out of reach.
There would naturally have to be built in a 'safety shut down' mode for events
where it was in contact with anything else than air between its electrodes.

The wrap up again, we now have sound coming out of a Biefeld-Brown effect
based transducer It blows lots of air for being such a tiny 'audio plasma pixel'.

Next step is to incorporate a class-D based audio modulator module.

(insert a Gary Larson cartoon here; in the lab, inventing the computer mouse)

[Indalhc]

...this should rather read "discovering the computer mouse"

[el`Ol]

If there are any vacuum diodes that can hold 30kV I could think about a magamp (magnetic amplifier). Lundahl once had a hifi-amp based on that technology. Only 10Watt, but no active elements needed.

It`ll also be tough to find transformers that do the job with mA.

[el`Ol]

The straight forward solution should be a 2.5kV valve amp with custom-made 12x transformer.

[Indalhc]

Originally posted by el`Ol
The straight forward solution should be a 2.5kV valve amp with custom-made 12x transformer.

On a eventual vacuum based design - What if we instead directly could have
a grid between the electrodes of the plasma transducer, and have the function
of amplifier and transducer in one?

I believe there is a good chance this actually will work

[Indalhc]

By the way, I have now got a fuller understanding of what I was trying to say earlier
about the plasma transducers' way of operation, compared to that of dynamic transducers.

The dynamic transducer is compatible with a single ended signal, however
what it then does is converting it into a 'push-and-pull' motion - It has to stop its mass
(relatively/partially) at every wave crossover point, and by this inducing distortion.

A plasma transducer pushes the air more and less hard in one direction only, without
ever having to change direction on anything. This is true class-A operation.