On Sat, 17 Oct 1998 16:27:17 +0100 "Ian White, G3SEK"
<G3SEK@ifwtech.demon.co.uk> writes:
>
>Rich Measures wrote:
>>In a choke fire,
>>Teflon makes unpleasant phosgene gas.
I am amazed at some of the questions from wannabe amp builders Ian.
They look for exotic choke materials yet seem brain dead to the basic
ceramic forms...Jeeez!
Then they do a one-off and are immediate experts.
73 Carl KM1H
>
>Hydrogen fluoride, actually - but almost equally unpleasant. I don't
>know exactly what gases epoxy makes after being burned, but those
>ain't
>pleasant either.
>
>If you want to make phosgene (COCl2) in the shack, the easiest way is
>to
>use a chlorinated hydrocarbon solvent (anything with -chloro- in the
>name) and let the vapor get into the the EPROM eraser or the PC board
>UV
>box while the UV tube is on. That'll do it.
>
>Phosgene smells something like concentrated rotten apples, and HF
>smells
>pungent (bites your nose and throat). Fortunately both are noticeable
>enough in low concentrations that you can get out without harm.
>
>On the other hand, if you open the PA box after a choke fire, or the
>EPROM eraser after filling the box with phosgene, lean over and then
>take a deep breath... well, just don't!
>
>73 from Ian G3SEK Editor, 'The VHF/UHF DX Book'
> 'In Practice' columnist for RadCom (RSGB)
> http://www.ifwtech.demon.co.uk/g3sek
>
>--
>FAQ on WWW: http://www.contesting.com/ampfaq.html
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>
>
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