[Boatanchors] Copper oxide rectifiers

[hwhall at compuserve.com]

I do know the selenium ones are dangerous and would not consider leaving one in service, only "present" for appearances with a modern diode hidden somewhere to do the work.
 

 Wayne
WB4OGM



-----Original Message-----
From: Brian Clarke <brianclarke01 at optusnet.com.au>
To: Roger Ruszkowski <flowertime01 at wmconnect.com>; Boatanchors <Boatanchors at mailman.qth.net>
Sent: Wed, Aug 21, 2013 2:56 pm
Subject: Re: [Boatanchors] Copper oxide rectifiers

 
 
 
I suspect you mean selenium rectifiers. There is no toxicology 
associated with copper oxide, as far as I can discover. I may not have 
searched far enough? 
 
73 de Brian, VK2GCE. 
? 
Brian Clarke 
BE, MBA, PhD, CPEng, FIEAust 
MD, Clarke & Associates P/L 
 
On Wed, 21 Aug 2013 16:37:23 -0400 (EDT), Roger said: 
 
 Wayne, 
 
 They may be usable still as your other posts replied. 
 
 If your restoration needs to look exact as original built, you have 
little choice. 
 If you just need function, then a modern diode bridge is in order. 
 Copper oxide was popular between tube diodes and better silicon 
diodes. 
 But the magic smoke in copper oxide diodes is more toxic than the 
magic smoke in silicon  
 or germanium diodes. Thus copper oxide has fallen out of favor with 
 some people. 
 
 Roger AI4NI 
 
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