Do all toroidal transformers hum?

Help Gurus,

When I put my ear (about 2 inches from the top)to my integrated amplifier, I can hear a faint hum from both the transformers. Can't hear anything when I move my ear away from the amp. Is this normal?

livin_26200207-15-2009 9:30pm

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gbart Details Discussions Posts This discussion Message User 290 posts 07-16-2009 at 04:27pm Copy Comment URL Report Comment Edit Delete I made a DC blocker as a favor to an Audiogon member a while back. There are a could of circuits floating around the Internet. Its easy enough for anyone with decent DIY skills to accomplish, just remember you're working with electricity. http://img.villagephotos.com/p/2003-5/191557/2020464 .
livin_262002 OP Details Discussions Posts This discussion Message User 187 posts 07-16-2009 at 04:29pm Copy Comment URL Report Comment Edit Delete Nice work Gbart, unfortunately I absolutely have no knowledge of electrical circuits.
timztunz Details Discussions Posts This discussion Message User 78 posts 07-16-2009 at 05:05pm Copy Comment URL Report Comment Edit Delete Livin....Try www.silvercircleaudio.com. I can surely attest to the build quality and effectiveness of these products.
dstanard Details Discussions Posts This discussion Message User 6 posts 07-16-2009 at 05:09pm Copy Comment URL Report Comment Edit Delete I see someone beat me to the reply, but the website is www.silvercircleaudio.com. The name is Dave Stanard. Thanks...
foster_9 Details Discussions Posts This discussion Message User 1,638 posts 07-17-2009 at 02:15am Copy Comment URL Report Comment Edit Delete Not all, but some.

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