Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.
Welcome to our site! Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.
All I can tell you is that, to make one is even more expensive. Anyway, the circuit is very simple. You merely need a transformer to generate a few kilovolts. What is difficult is getting a vacuum globe filled with inert gases. If you don't have the resources for these, then it's better to just buy one. If you do have, then why stop at plasma globes? There's always jacob's ladder, tesla coils :twisted:
Anyway, google around for it. I remember seeing someone do one using a light bulb
Let's clarify- do you want to build a driver, or the whole globe? Do you have a broken driver or no driver at all?
The driver is not so hard. You need a high voltage flyback transformer (that's the tricky part). There are two flavors past that- one's a Hartley oscillator that automatically adjusts to the resonance of the transformer and globe, or a fixed freq 555-type circuit. The 555 doesn't find the resonant point, but actually this isn't a big deal, the globe operates fine without it. In fact, the globe has interesting variations in its streamers as the freq is varies.
I have a PIC microcontroller doing fun things with a plasma globe. It slowly swings from one freq extreme to the other so the globe varies from a faint white glow in the center to a reddish glow on the exterior.
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