Stuart Bell ha escrito: > > 1) There's no known first-hand evidence of anybody being killed by a > > CRT. > > To say 'compact Mac CRT' would be more certai.
Yes, that's right. Bigger CRTs store a bigger charge at a bigger potential (tension), so while the 9/10" CRTs on compact Macintoshes are harmless, bigger tubes can be more dangerous. Just think that a 33" CRT like those used nowadays in biggest TVs can store three times more tension (more than 30 kilovolts!) and ten times more charge than a compact Mac's one. And I have to add that a friend of mine was shocked when working with a 20" b&w CRT (he wasn't seriously harmer really). It seems that nobody has suffered this while working with a compact. "Byron Q. Desnoyers Winmill" ha escrito: > My addition: I have broken a couple of tubes on compact Macs [...] Another good reason for not to discharge a compact's CRT: by doing that you'll be dangerously near the fragile neck of the CRT... with an steel tool in the hand. Just pay a bit less attention than you must and you end smacking the neck's base and rendering the CRT unusable. > Besides, there are > other reasons to be careful while working in compact Macs. For > example: you may want to test a machine before closing it up, in > which case it is more dangerous; or you may need to dive back in, > before the excess charge bleeds away. That's true. You can power on a compact Mac (or any other thing with a CRT) while it's opened if you take enough care and know where you can't put your hands (TV technicians come to mind). In fact, my compact Mac is opened *allways* (children! do not do this at home! ;-) ): I have a couple motherboards for it, the original Classic that came inside it, and a Classic II one, and I leave it open to swap them when I want to. I don't need to say that, even if the Classic's analogue board has an auto-discharge circuit and all HV parts are conveniently insulated, I have a lot of care all times. > And, as that MacWebster column pointed out, there is an implicit > reason to give these warnings: lawyers. Quite frankly, I would > rather electrocute myself than deal with those, which means playing > dangerously in Macs but telling other people to be safe. ;-) Apple and Micro$oft would better spend their money in R&D instead of in lawyers (the second company more than the first). Of course, even if I think that discharging a CRT is more dangerous that leaving it charged, sometimes the point is not what you think, but what a judge think, or can be made to think. Greetings, Antonio Rodríguez (Grijan) <ftp://grijan.cjb.net:21000/> -- Compact Macs is sponsored by <http://lowendmac.com/>. Support Low End Mac <http://lowendmac.com/lists/support.html> Compact Macs list info: <http://lowendmac.com/lists/compact.shtml> --> AOL users, remove "mailto:"; Send list messages to: <mailto:[EMAIL PROTECTED]> To unsubscribe, email: <mailto:[EMAIL PROTECTED]> For digest mode, email: <mailto:[EMAIL PROTECTED]> Subscription questions: <mailto:[EMAIL PROTECTED]> Archive:<http://www.mail-archive.com/compact.macs%40mail.maclaunch.com/> --------------------------------------------------------------- >The Think Different Store http://www.ThinkDifferentStore.com ---------------------------------------------------------------
