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Registered Member #1055
Joined: Thu Oct 11 2007, 11:46AM
Location: Somewhere in central Europe ;)
Posts: 8
I used distilled water (bought on a petrol station) and HV generator based on 2* 2N3055 transistors (24V, ~11A). I tried twice: once using a HV transformer and tripler (both found in service ) and once using quite a big transformer-multiplier which is able to generate 4,5cm thin arcs... and nothing. Nearly nothing. Because when I turned off the power there was some water in a gap between glasses. Before the gap was dry. There was an arc between the glasses, but no water-bridge... Have you got any ideas or advices? How can I make it working? Maybe not as yours, but visible...
Registered Member #10
Joined: Thu Feb 02 2006, 09:45AM
Location: Bunbury, Australia
Posts: 1424
Pure water is an reasonable insulator. If you are getting an arc of any significant brightness between the glasses then the water is not pure enough. Mine are hard to see in normal room lighting. They said they used triple distilled and I used deionised water from a supermarket. Did you buy it in a bottle or just from a watering can type thing for topping up batteries?
I am not sure if it needs DC or not but it is an electrostatic experiment so I expect DC is required.
Also deionised water soon becomes ionised on exposure to air (eg CO2), electrodes and electric currents. Like CO2 +H2O gives H+ and HCO3- Your glasses need to be clean and rinsed in the deionised water too.
Registered Member #1055
Joined: Thu Oct 11 2007, 11:46AM
Location: Somewhere in central Europe ;)
Posts: 8
strange, it doesn't work I boiled destilled water in glasses to dissolve conducting pollutions, replaced water and... I still get an arc The best effect I achieved was that some water swam out of the glasses... I used carbon electrodes instead of metal ones... Your water was bought in a supermarket etc or... :?:
Registered Member #10
Joined: Thu Feb 02 2006, 09:45AM
Location: Bunbury, Australia
Posts: 1424
Try the supermarket stuff which is what I have used. Don't forget it will become conductive. I wouldn't use carbon. I reckon it will have salts and impurities like if you have ever touched it. I used a small bit of solder which I figured might be less reactive than copper.
The water's conductivity will go off on exposure to air, presumably due to CO2 dissociation.
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HV water bridge?
) and once using quite a big transformer-multiplier which is able to generate 4,5cm thin arcs... and nothing. Nearly nothing. Because when I turned off the power there was some water in a gap between glasses. Before the gap was dry. There was an arc between the glasses, but no water-bridge... Have you got any ideas or advices? How can I make it working? Maybe not as yours, but visible...
I boiled destilled water in glasses to dissolve conducting pollutions, replaced water and... I still get an arc 
The best effect I achieved was that some water swam out of the glasses... 