5000V power supply!

trondareo · 6th April 2011, 08:59 AM

Anyone into crazy high voltage stuff? 250v to 5000V power supply. I´d 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)

marce · 6th April 2011, 11:39 AM

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

geraldfryjr · 6th April 2011, 12:01 PM

Thats a very nice power supply.
I sure wish I had that on my bench! jer

cliffyk · 7th April 2011, 02:41 AM

I have a 1kV supply, and also routinely test automotive ignition coils at 35 to 60kV...

imix500 · 7th April 2011, 03:27 AM

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.

cbdb · 05:26 AM

Quote:

I´d 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?).

geraldfryjr · 8th April 2011, 08:38 PM

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

DaveM · 8th April 2011, 08:46 PM

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 70°c 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.

firechief · 8th April 2011, 09:09 PM

Ah yes the bin. Bin there

Head first, least I miss something.

dave_gerecke · 8th April 2011, 11:25 PM

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

6th April 2011, 08:59 AM	#1
trondareo diyAudio Member Join Date: Feb 2009 Location: Trondheim	5000V power supply! Anyone into crazy high voltage stuff? 250v to 5000V power supply. I´d 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) __________________ I´m doing stuff at http://taooftubes.blogspot.com/

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6th April 2011, 11:39 AM	#2
marce diyAudio Member Join Date: Jun 2007 Location: Blackburn, Lancs	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

6th April 2011, 12:01 PM	#3
geraldfryjr diyAudio Member Join Date: Feb 2008 Location: Jackson,michigan	Thats a very nice power supply. I sure wish I had that on my bench! jer

7th April 2011, 02:41 AM	#4
cliffyk diyAudio Member Join Date: Nov 2009	I have a 1kV supply, and also routinely test automotive ignition coils at 35 to 60kV...

7th April 2011, 03:27 AM	#5
imix500 Proud Union Member diyAudio Member Join Date: Mar 2004 Location: Nashville, TN	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.

8th April 2011, 08:38 PM	#7
geraldfryjr diyAudio Member Join Date: Feb 2008 Location: Jackson,michigan	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

8th April 2011, 08:46 PM	#8
DaveM diyAudio Member Join Date: Feb 2003 Location: Vermont	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 70°c 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.

8th April 2011, 09:09 PM	#9
firechief diyAudio Member Join Date: Sep 2008 Location: Near Seattle Wa	Ah yes the bin. Bin there Head first, least I miss something.

8th April 2011, 11:25 PM	#10
dave_gerecke diyAudio Member Join Date: Dec 2007 Location: Vermont	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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