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X & Y Mains safety capacitors
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Return to top of page · Post #: 1 · Written at 8:57:22 AM on 14 September 2015.
	Clive Durham Location: Grenfell, NSW Member since 8 July 2015 Member #: 1771 Postcount: 212
This may be old news to most but new for those just starting out. As per my reading paper caps etc either across the mains or from each leg to earth are not a good idea safety wise. I was about to organise some on the net when I remembered some old PC power supplys in the garage. Low and behold there they are on the mains entry socket. Most electronic items will have them fitted, so you can get some for free from throw out items. The PC power supplys also yield some good components if you are into transistor equipment. I hope this helps someone. ‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾ Clive

Return to top of page · Post #: 2 · Written at 9:36:18 AM on 14 September 2015.
	Marcc Location: Wangaratta, VIC Member since 21 February 2009 Member #: 438 Postcount: 5254
The often horrid & noisy CFL also has HV caps in it. If you can test them when it dies some of those might salvage & can actually be used in Valve equipment. If you have the need for caps on the mains (& I do) ensure that these are the proper 275VAC mains approved type. These are often covered in standards association stamps. Marc

Return to top of page · Post #: 3 · Written at 10:47:30 AM on 14 September 2015.
	GTC Location: Sydney, NSW Member since 28 January 2011 Member #: 823 Postcount: 6687
Here's a pretty comprehensive article on the subject. Just bear in mind that the line working voltages mentioned apply to the USA and Canada: http://www.justradios.com/safetytips.html Here are some appropriate types for Oz: http://au.element14.com/film-suppression-capacitors/suppression-class/x2-y2/pg/112028693

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