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Old 26th December 2011, 10:36 PM   #101
gpapag is offline gpapag  Greece
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Quote:
How can my Body be 1/2 V different in potential to the air around it

Donít try to build a case out of this. Just consider the difference in potential between your and your wifeís body. Some hundred volts or so?

George
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Old 27th December 2011, 09:46 AM   #102
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RF attenuate the mains input.
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Old 27th December 2011, 10:05 AM   #103
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George, way too high a potential difference at times but some contact usually sorts that out

Thanks Andrew I went and bought an IEC socket with EMI filter in it today. I'm just trying to work out the layout of the prototype chassis. They only had the one type, a 6A one. After googling it and finding the datasheet I should have tried to get a 1A one. The lower power ones attenuation is a lot better. Oh well I need one on my mosfet amp so may find another and replace when I do the final chassis and put this one into the mosfet amp.

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Old 27th December 2011, 11:44 AM   #104
AndrewT is offline AndrewT  Scotland
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I bought a few batches on Ebay.
I have a stock of 1A, 3A, 6A, switchable, fused, etc.
I refuse to pay for one at a time, when I know what I am like.
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Old 27th December 2011, 01:05 PM   #105
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Here is my Power Supply Adjuster Experment 3 amps transformer but i used LM317 instead of LM350 0-30 volts but exceeded in 37.5volts

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Old 27th December 2011, 01:45 PM   #106
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Attach your documents.
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Old 27th December 2011, 02:56 PM   #107
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i don't know why my pics was remove.. but i attached my pics here,,, i think you going to download it... just like what i've post a while ago... i used LM317 instead of LM350 because LM350 is designed for 3 amps. while the LM317 is Designed by 1 amp... so is doubled it in order to avoid Over Heated..
Attached Images
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Old 27th December 2011, 08:29 PM   #108
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good reuse of a pc power-supply case

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Old 27th December 2011, 11:47 PM   #109
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Originally Posted by wintermute View Post
After googling it and finding the datasheet I should have tried to get a 1A one. The lower power ones attenuation is a lot better.
Indeed.
Also Schaffner that I typically use have product lines with different attenuation ratings (normal, good, high, very high or something along those lines) and other features (e.g. with earth choke or w/o) which differentiate IECs with the same current ratings.
So, not even all Schaffner filtered 1A IECs are created equal.
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Old 28th December 2011, 02:38 AM   #110
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Thanks, I found a source of Schaffner here in aus at reasonable prices I shouldn't have been so hasty to go out and get one.... the datasheet doesn't seem to say what the difference is between the one with a bleed resistor and one with out (performance wise). The fn9244-1-06 seems to fit the bill nicely. I'm guessing that the bleed resistor may improve rejection at certain frequencies. http://www.schaffner.com/components/...%20e%20103.pdf

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