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20th April 2010, 01:00 PM
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#1 |
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diyAudio Member
Join Date: Feb 2010
Location: calgary alberta tundra canada
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glass passivated plastic rectifiers
do these "glass passivated plastic rectifiers" degrade over time? i read that selenium diodes build up resistance as they age and that they can "fail dramaticaly".
they are in a ka-601 kenwood amplifier. thanks |
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20th April 2010, 02:27 PM
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#2 |
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diyAudio Member
Join Date: Oct 2007
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"glass passivated plastic rectifiers" = silicon diodes. As reliable as anything if kept within ratings.
The glass passivation is just a coating (glass) over the silcon chip to keep moisture out. The plastic packages don't do a very good job of that. In hermetic metal packages, they may skip the passivation to keep capaciatnce down. |
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