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Whats the deal on AC line filters.....
Whats the deal on AC line filters.....
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Old 3rd September 2001, 05:21 PM   #1
hifi is offline hifi  Sweden
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Join Date: Mar 2001
Location: sweden
As i see it i have thre options...

1; buy and IEC plug with integrated filter

2; John rich filter....hard to get parts

3; Make a totaly overkilled filter with 3pc of 1,7mH 0,02R coils for each phase and so on...

BTW should i filter the Ground wire aswell?


any suggestions the filter will be built in to the amp the rest of the PS will be a 9Kg 900VA toroid wit approx 0,2F of capasitance after...(yes i got a big fat softstart circuit...)

/micke
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Old 3rd September 2001, 05:38 PM   #2
Freddie is offline Freddie  Sweden
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Join Date: Oct 2000
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I'm using a Schaffner FN282-6 IEC plug with integrated filter, fuse-holders and power switch. It works great. But last week I blew up the built in power switch, so now I must buy a softstart circuit.
Elfa sells the "FN282-6", art.nr. 69-673-76.

What softstart circuit are you using? I'm thinking of buying the lcaudio.dk. digital softstart.


/Freddie

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Old 3rd September 2001, 06:08 PM   #3
hifi is offline hifi  Sweden
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Join Date: Mar 2001
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i use a cap to lover the AC line voltage...(throug its reactance...dosnīt produce heat...as a resistor would..) the power is feed to a cap and when it is full the power goes to the relay in the meantime ...a couple of secounds i let the power go through a 100R 20W resistor..

I have schaffner on my cd and preamp as of now but im thinking of something more extreme....

/micke
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Old 3rd September 2001, 06:19 PM   #4
hifi is offline hifi  Sweden
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Join Date: Mar 2001
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that integrated schaffner was a bit pricey....i need 2 u se...

Why would you want a IC controlled soft start....completely unnecisarry...(IMHO)....but hey its your monney...


BTW i will have my aleph boxes professionaly made..=) rockon.....CNC laser machines.....=)


/micke
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Old 4th September 2001, 01:56 PM   #5
Petter is offline Petter
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Join Date: Jan 2001
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Default deja vu????

http://www.diyaudio.com/forums/showt...p?threadid=265

http://www.diyaudio.com/forums/showt...9&pagenumber=3
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Old 5th September 2001, 02:58 AM   #6
hifiZen is offline hifiZen  Canada
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I typically use Corcom filters in my projects. They seem to work well, though admittedly I've not tried many other options. Digikey carries a nice selection of these, both separate filters, and filters with IEC plugs.
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