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Old 6th April 2011, 08:59 AM   #1
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Default 5000V power supply!

Anyone into crazy high voltage stuff? 250v to 5000V power supply. Id be scared to have it on my bench. What if you slip when adjusting voltage?

Check out this Ebay item
SHANDON VOKAM 5000-250V laboratory electrophoresis psu on eBay (end time 10-Apr-11 17:01:35 BST)
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Old 6th April 2011, 11:39 AM   #2
marce is offline marce  United Kingdom
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Done PCB@S and mechanicals for PSU's for electron microscope dev, 35kV 10kV and a few 1-1.5kV in same box, got to take care. Special connectors with extra long path for creepage, 10mm polycarb sides, 20mm gap then second layer. Interesting when things go wrong
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Old 6th April 2011, 12:01 PM   #3
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Thats a very nice power supply.
I sure wish I had that on my bench! jer
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Old 7th April 2011, 02:41 AM   #4
cliffyk is offline cliffyk  United States
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I have a 1kV supply, and also routinely test automotive ignition coils at 35 to 60kV...
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Old 7th April 2011, 03:27 AM   #5
imix500 is offline imix500  United States
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I bought a 3kV electrophoresis supply a few years ago to check and reform HV caps from my Nd/Yag lasers. Super handy and they can be had CHEAP on ebay.
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Old 7th April 2011, 05:24 AM   #6
cbdb is offline cbdb  Canada
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Quote:
Id be scared to have it on my bench. What if you slip when adjusting voltage?
You know 50 t0 500 volts is the most dangerous range. Higher voltages usually jolt you off the connection.(unless they can also source high current like transmission lines). So building big power amps can be more dangerous than working with neon transformers (17kv?).

Last edited by cbdb; 7th April 2011 at 05:26 AM.
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Old 8th April 2011, 08:38 PM   #7
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I remember the first time I got zapped on a speaker cable.
At the time I didn't realize that there was in excess of 120v p-p until I went back and did the math as it was a rather large amplifier(yeooow)! jer
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Old 8th April 2011, 08:46 PM   #8
DaveM is offline DaveM  United States
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Today at work I ran a test dumping 14 volts and 730 amps into a single heat sink using 3 IGBT's. The voltage is not too high, but still 10,000 watts into a sink is pretty impressive. 3.6 gallons per minute of water to keep the devices under 70c I will be keeping my eyes out for sinks going in the bin. The power supply would be fantastic for a true pass monster, but those don't ever go in the bin.
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Old 8th April 2011, 09:09 PM   #9
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Ah yes the bin. Bin there Head first, least I miss something.
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Old 8th April 2011, 11:25 PM   #10
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Hmmm, I was mocked for my habits of "dumpster diving" at my former employer. Of course, due to this habit, and others, I have no space in my basement, and a bloody mess in my apartment. And I am the landlord!

I do however have some rather interesting items around here.

Peace,

Dave
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