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Old 15th February 2005, 12:13 PM   #1
benny is offline benny  Australia
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Default Modifying a computer PS for HV

I can remember seeing/hearing someting a while ago about modifications that can be done to a computer PS to convert it into a HV PS. I can't remember where I heard this, but I have been given a couple of old 300W computer PS's for free and would like to modify one, so I was wondering if anybody happens to know anything about how this can be done?
Thanks in advance for any help anyone offers.
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Old 15th February 2005, 01:41 PM   #2
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Default HV AT/ATX PS Mod

Hi Benny,

I seem to remember an article or two for modding. A guy had modded his old 250W AT supply to put out something line 350VDC@600mA for a tube amp. I will have to look it up and if I find it, I will post the link here.

Steve
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Old 15th February 2005, 07:57 PM   #3
benny is offline benny  Australia
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Thankyou for that Steve, it's greatly apreciated.
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Old 19th February 2005, 09:44 PM   #4
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Default Pic PS Mod

bEnnY-

I think I have it. I have tried to compress this pic with the evaluation version of Winzip, but it only lets me compress it something like 1%.

I'm sorry I don't remember where i got this pic, but I got it last August. Anyway, here goes......

Ok, I tried to attach it, and it's still too big. E-mail me privately, and I will send it to you.

Steve
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Old 18th March 2005, 04:32 PM   #5
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Default HV SMPS Pic

Here it is......
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File Type: jpg at tube ps small.jpg (94.0 KB, 338 views)
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Old 18th March 2005, 10:20 PM   #6
Stocker is offline Stocker  United States
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Hey that's a neat photo and all, but how about a little more information... like where it came from, and how the modification was performed, etc...
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Old 19th March 2005, 12:10 AM   #7
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Default Pic

Like I said, I don't remember where I found it, it was almost 8 months ago, but if I run across it again, I will post the link.
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Old 19th March 2005, 06:11 AM   #8
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Modifying a low voltage SMPS for high voltage is a scary proposition if you ask me -- this would be fraught with safety & reliability issues.

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Old 19th March 2005, 07:32 PM   #9
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Default Safety, Safety, Safety

That is why any project like this is approached with the utmost of safety in mind. While I don't necessarily endorse anything like this (I'm just passing on some info I stumbled across in response to another's query), I would be interested in how it turns out.

Another reasion why I like solid state- I am very alergic to high voltage.
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Old 19th March 2005, 07:39 PM   #10
jleaman is offline jleaman  Belgium
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The more voltage you try to suck out the less current you will get..
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