Plasma-speaker

230

03:24:04

A Plasma-speaker based on NE555. 
The sin-wave-gen should be an audio-input. 

published 10 years ago

thebugger

10 years ago

The principle is correct, but i don't think it'll work. The modulation is not stable and the ,,carrier,, doesn't have the bandwidth to contain the audio signal.

Terror404

10 years ago

Yes... But it works in real life

WTFCircuit

10 years ago

I did it in real life and it works, but no one cares about that

thebugger

10 years ago

Plasma speakers work, but this specific driver won't work

WTFCircuit

10 years ago

I did one very similar to this one, the only changes are a darlington bjt instead of the mosfet and it works quite well, actually better than I was expecting

thebugger

10 years ago

What sampling frequency did you use? I don't think it's going to be that simple. I think some advanced PWM may be required, for the output to truly replicate the input.

Victor805

10 years ago

I used a MOSFET and it kinda works, but the volume doesn't seems high enough.

Terror404

9 years ago

But this one works

Terror404

7 years ago

The sampling frequency can be justified with the potentiometer. It's around 150kHz.

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