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troots
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Post by troots » Thu Jan 29, 2009 12:22 am

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Last edited by troots on Tue May 26, 2009 2:33 pm, edited 1 time in total.
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Neil C
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Post by Neil C » Wed Feb 04, 2009 3:21 pm

Thanks for the heads up, I'm looking into this now.

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Neil C
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Post by Neil C » Wed Feb 04, 2009 5:56 pm

No need to worry about there being selenium as far as using your Spacexpander goes:

Hugh Robjohns who is to be totally respected says this:
'There is no inherent health risk, assuming you don't spend you time chewing on the hardware! And no particular need to worry. Selenium rectifiers are still made and used in a range of specialist applications where silicon recitifers can't do the same job, and selenium is also used in various photo-electric devices.

However, if you were planning to have the unit refurbished or repaired at some point, then it would make sense to replace the selenium rectifier with modern silicon diode(s) at that time. With things like vintage radios and TV, restorers often disconnect the selenium rectifier but leave it in situ to maintain the vintage look of the hardware (if it is visible).

If a selenium rectifier starts to fail in use, it normally overheats and produces a really nasty garlic/onion sulphurous kind of smell that can't be ignored. The fumes are really noxious but not life-threateningly toxic or carcinogenic in likely concentrations in a room -- but you won't want to stay anywhere near the faulty gear anyway! Just switch it off and take it outside (while holding your breath!). Come back in a week after the smell has gone to collect it for repair'
http://www.soundonsound.com/forum/showf ... Post704639

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