Ok, ok, so since we are now all confidant about all this shocking 2nd anode charge stuff, here goes a real good true story.
Many years ago I was working at a TV repair store to pay for college. TVs were removed from the cabinet and put on the repair bench. We did not remove the CRT from the cabinet, just used an old surplus 5" CRT and connected the 2nd anode wire via an alligator clip to the nub on the CRT. This was easy to snap off and I was holding the chassis to look at some part and the clip snapped off and hit the keys in my front pocket. I can tell you for sure, WITHOUT ANY DOUBT AT ALL, about 20KV does fry things close to them keys and oh my that did hurt, but no apparent damages since I got 4 kids. JML. =============== --- On Sat, 12/11/10, ah...clem <[email protected]> wrote: From: ah...clem <[email protected]> Subject: Re: Ungrateful Apple abandons older Mac service To: "G-Group" <[email protected]> Date: Saturday, December 11, 2010, 11:14 PM On Dec 11, 9:44 pm, Dennis Myhand wrote: > > Even if you got zapped, it would only be a momentary discomfort. > > Lotsa voltage but notta lot of current... > > JT > > It only takes 50milliamps. That isn't a lot as it is. wrong again. 50 mA causes no more than discomfort. it requires a sustained 100-200 mA to induce ventricular fibrillation, and over 200 mA to halt breathing and pose a serious risk of death (quoted directly from a medical text). please scroll up to read a knowledgable contribution to this thread from Jeff Walther. i might add that i too, as a young apprentice to an electrician, once touched a hot 220 feed (unfused, directly from the powerlines) and even though it knocked me to the floor 15 feet from where i was standing, i neither needed nor received any medical attention, and i am still here to tell you that you don't know what you're talking about when it comes to the dangers of electric shocks. furthermore, the total amount of charge stored in a CRT is minimal, and is completely discharged in a millisecond or so. hardly a sustained electrocution. i suppose if someone were soaking wet and standing on their naked left foot on a grounded metal plate connected by metal rods sunk to the level of the water table, and they discharged a just unplugged CRT thru their left hand forcing the momentary current to pass direct thru their heart, there might be a small risk of inducing ventricular fibrillation (which is still not necessarily fatal). the absurdly over-cautious posts in this thread simply confirm the old adage that there is nothing more dangerous than a little bit of knowledge. not even electricity. besides, as the original poster has just added, replacing the HD in an eMac is simple, and unless someone is a complete idiot (in which case a highly improbable death by electric shock would just be one small victory for evolution), it is easily done without ever going near the CRT. -- You received this message because you are a member of G-Group, a group for those using G3, G4, and G5 desktop Macs - with a particular focus on Power Macs. The list FAQ is at http://lowendmac.com/lists/g-list.shtml and our netiquette guide is at http://www.lowendmac.com/lists/netiquette.shtml To post to this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/g3-5-list
