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4th August 2005, 01:32 AM
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#1 |
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Account Disabled
Join Date: Jun 2004
Location: Indiana
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What the heck is this electrical component?
This is part of the audio board of my teac a-l700p amp. I know what resistors and caps look like, but I have no idea what the long slinder gray component is. Is it a resistor in disguise or something else? The board labels it as BD86 or BD85. Thanks for your time in this matter, Kevin.
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4th August 2005, 01:47 AM
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#2 |
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diyAudio Member
Join Date: Aug 2004
Location: Behind you
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They look rather like ferrite beads to me, used to create a small inductance to filter RF.
__________________
http://mrevil.pwp.blueyonder.co.uk/ |
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4th August 2005, 02:34 AM
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#3 | |
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diyAudio Member
Join Date: Feb 2004
Location: Upstate NY
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Mr. Evil has it right...
Quote:
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beerguy |
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4th August 2005, 04:03 AM
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#5 |
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Account Disabled
Join Date: Jun 2004
Location: Indiana
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Do ferrite beads affect the sound in a good way or bad way? I am just curious since tripath never mentions it in their spreadsheet.
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4th August 2005, 04:19 AM
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#6 |
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diyAudio Member
Join Date: Aug 2004
Location: Behind you
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No components are inherently good or bad for the sound; it depends how they are used. They will look pretty much like a plain piece of wire at audio frequencies, so they shouldn't do any harm, but applied appropriately they will keep high frequency nasties out (or stop them escaping, if they are internally generated), which is of particular importance for switching amps.
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http://mrevil.pwp.blueyonder.co.uk/ |
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4th August 2005, 06:11 AM
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#7 |
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Banned
Join Date: Feb 2002
Location: As far from the NOSsers as possible
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Yes, they are ferrite beads, but they do not create a small inductance to filter RF. Some of you guys need to read up on the basics................
Jocko |
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4th August 2005, 07:22 AM
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#8 |
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diyAudio Member
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My vote: 0.1uF 63V film caps...
 Jan Didden
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/New Linear Audio publication: Baxandall & Self on Audio Power! |
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4th August 2005, 09:35 AM
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#10 | |
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diyAudio Member
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Quote:
 Jan Didden
__________________
/New Linear Audio publication: Baxandall & Self on Audio Power! |
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