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Registered Member #543
Joined: Tue Feb 20 2007, 04:26PM
Location: UK
Posts: 4992
The top picture shows something which has been improvised out of a watch case and strap. I expect the cable leads to an RF generator of some kind, perhaps a TC, or even to Paint Shop Pro!
The second device seems to be fabricated out of PP3 battery clips.
Registered Member #96
Joined: Thu Feb 09 2006, 05:37PM
Location: CI, Earth
Posts: 4061
Could be using a simple HV generator (that large block in the top centre looks like a potted inductor). It *is* possible to generate tens of KV in a small space using a piezo transformer but IIRC they need 12V minimum.
I did find out that there is a hybrid system where they run two PZTs in series with inverse phasing, to get +/- 2KV and if you run them open loop (using a PIC based pulse excitation circuit) you can get over 6KV peak.
-A
"Bother" said Pooh, as the laser diode fell off its mount...
banned on 5/26/2009 Registered Member #1877
Joined: Mon Dec 22 2008, 02:03AM
Location:
Posts: 147
The second picture is very easy to say that its a simple electromagnet. you can see the coiled wire in the far clear section, and obviously uses 3 - 9volt batteries to power it...
Registered Member #902
Joined: Sun Jul 15 2007, 08:17PM
Location: North Texas
Posts: 1040
Conundrum wrote ...
Could be using a simple HV generator (that large block in the top centre looks like a potted inductor). It *is* possible to generate tens of KV in a small space using a piezo transformer but IIRC they need 12V minimum.
you can get 12V in a pretty small package, but they don't last very long IIRC
my guess is that instead of making an RF source of tens of KV, make one fot driving the driver built unto the compact flourescent, as the bulb is the kind with the driver built in... but the watch nay just as well be tens of kV... Emco makes VERY small, self contained units (since they were light and small enough, I have plans to build a lifter based on one, so that way the entire lifter would be self contained).
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