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Posted to rec.antiques.radio+phono,sci.electronics.repair
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Selenium Rectifier / Metal Rectifier queries
On Jan 15, 6:14*pm, Stephanie Weil wrote:
On Jan 9, 5:54*pm, "Paul P" REMOVE paul @ REMOVE ppinyot . REMOVEcom wrote: I believe Selenium is still used in the power industry. http://www.cehco.com/?page_id=233 Paul P. Metal rectifiers are still used in things like elevators and radio transmission facilities, I believe. *I think they're selenium. There's also the mercury arc rectifier -- although that's not a solid state device.  I've heard that copper oxide diodes were superior in that they didn't decay with age like their selenium counterparts (as those of us working old radio receivers know). Stephanie Weil KC2TJB Holbrook, NY |
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