Re: 17 Powerbook sends vibrations through body ?
Well, I guess many of us have learned Ohms law Laurie, some of us better than others. Read my message again carefully and try to figure out what I was saying. High voltage like 250v AC and a good earth can provide conditions for a fatal shock. There are plenty of dead people who have disregarded tingles after they unwittingly set up the right conditions for a fatal shock. 250V AC is regarded as high voltage. It needs to be checked. Paul. From: Laurie McDonald [EMAIL PROTECTED] Date: Mon, 2 Apr 2007 12:09:26 +0800 To: Paul Weaver [EMAIL PROTECTED] Subject: Re: 17 Powerbook sends vibrations through body ? Paul Way back in my twenties I studied electronics at night school. One thing we learned is that the voltage won't hurt you. its the current - amps. To demonstrate this our tutor had us each place our index finger on the 25kv terminal on the deflection yoke of a TV, and then draw a spark out about 1 inch long before stopping. Not one of the class fried! Regards, Laurie -- The WA Macintosh User Group Mailing List -- Archives - http://www.wamug.org.au/mailinglist/archives.shtml Guidelines - http://www.wamug.org.au/mailinglist/guidelines.shtml Unsubscribe - mailto:[EMAIL PROTECTED]
Re: 17 Powerbook sends vibrations through body ?
Hopefully the fact that I got round to checking the original box in which my Powerbook came, and found the 3-pin extension, will help me live longer. (Thanks all for the tips on that note.) I haven't felt any tingles, but then I've only had it plugged in since this afternoon. If it's a backward step, and things get worse, one clue may be the absence of further posts. Ever. One thing I noticed that was different. When I had the 2-pin plug, if I took the end that plugs into the Powerbook, and put, say, my finger across both the brass-looking pointy bit, and the thin silver sleeve, then the lightable area would turn green (no doubt there's proper terminology for all of this stuff, but I'm clueless as to what it might be). Presumably something about completing a circuit. But now, with the 3-pin plug hooked up, that little phenomenon appears to have stopped. Someone's probably going to tell me that putting my finger on the connector was a stupid thing to do to start with :( Isn't this why Clipsal Safety Switches exist?!! :) Steven On 2/4/07 6:15 PM, Paul Weaver [EMAIL PROTECTED] wrote: Well, I guess many of us have learned Ohms law Laurie, some of us better than others. Read my message again carefully and try to figure out what I was saying. High voltage like 250v AC and a good earth can provide conditions for a fatal shock. There are plenty of dead people who have disregarded tingles after they unwittingly set up the right conditions for a fatal shock. 250V AC is regarded as high voltage. It needs to be checked. Paul. From: Laurie McDonald [EMAIL PROTECTED] Date: Mon, 2 Apr 2007 12:09:26 +0800 To: Paul Weaver [EMAIL PROTECTED] Subject: Re: 17 Powerbook sends vibrations through body ? Paul Way back in my twenties I studied electronics at night school. One thing we learned is that the voltage won't hurt you. its the current - amps. To demonstrate this our tutor had us each place our index finger on the 25kv terminal on the deflection yoke of a TV, and then draw a spark out about 1 inch long before stopping. Not one of the class fried! Regards, Laurie -- The WA Macintosh User Group Mailing List -- Archives - http://www.wamug.org.au/mailinglist/archives.shtml Guidelines - http://www.wamug.org.au/mailinglist/guidelines.shtml Unsubscribe - mailto:[EMAIL PROTECTED]
Re: 17 Powerbook sends vibrations through body ?
Someone's probably going to tell me that putting my finger on the connector was a stupid thing to do to start with :( Isn't this why Clipsal Safety Switches exist?!! :) Assuming you have one where you are , AND it is in working order ! Yes , they are intended to save you ! But only new houses have them unless the owners of older houses have paid to have one installed . Everybody How long since you used the Test button on your Safety switch ( RCD .. residual current device ) ? Bob -- The WA Macintosh User Group Mailing List -- Archives - http://www.wamug.org.au/mailinglist/archives.shtml Guidelines - http://www.wamug.org.au/mailinglist/guidelines.shtml Unsubscribe - mailto:[EMAIL PROTECTED]
Re: 17 Powerbook sends vibrations through body ?
if this tingeling feel is a problem then charge your laptop @ night use it of battery the safety switch normally kicks out @ 30 ma which is 10 times higher than what your power pack leaks what's more the problem if you connect the mains powered laptop to earthed audio equipment you could end up with strong funny noise in the speakers if you unplug the power the noise dissapears... you don't need to buy a new one, you just end up with the same problem again cheers James SAD Technic Video Productions, Electronic repairs U3 / 6 Chalkley Pl Bayswater WA 6053 +618 9370 5307,+618 6262 5707, 0414 421 132 http://www.iinet.net.au/~saddas skype: barleeway -- The WA Macintosh User Group Mailing List -- Archives - http://www.wamug.org.au/mailinglist/archives.shtml Guidelines - http://www.wamug.org.au/mailinglist/guidelines.shtml Unsubscribe - mailto:[EMAIL PROTECTED]
Problem writing audio CD
Hi, A musician friend of mine uses her eMac (OS10.4) to burn her own CDs using Toast Titanium 6. Recently all CDs she has tried to burn have been unusable on CD players - tracks 1-8 are fine, but tracks beyond 8 cannot be directly addressed using the CD's forward/backward buttons. All tracks can be played, but tracks beyond 8 show on the display as so many minutes and seconds into track 8. The player correctly reports the total number of tracks, but if you try to go directly to track 9, for example, it will show track 9 selected, but won't play it. One CD player we used allowed us to insist on playing; it correctly played track 9, but the display changed, showed us 4:35 minutes into track 8. I've tried writing different groups of files, different numbers of tracks, from different directories. They all stop being addressable after track 8. The CDs play correctly in itunes or from the finder, using preview. They appeared to write correctly in toast, with 2 seconds between tracks, and all tracks are in their separate files on the disk. I've tried removing the preference and plist files - no change. I've removed all toast files and reinstalled - no change. I assume that something is going wrong with the lead in or lead out files, but given that reinstalling the software didn't fix the problem I'm at a bit of a loss - what else to try? Has anyone any experience of this sort of problem? I'd appreciate any suggestions on what else might be affecting writing the CDs. Cheers, Kaye -- Kaye Stott and Geoff Prince email: [EMAIL PROTECTED] web: http://www.kgweb.org.au -- The WA Macintosh User Group Mailing List -- Archives - http://www.wamug.org.au/mailinglist/archives.shtml Guidelines - http://www.wamug.org.au/mailinglist/guidelines.shtml Unsubscribe - mailto:[EMAIL PROTECTED]
Re: apology for Tuesday meeting
On 30/03/2007, at 9:37 AM, Susan Hastings wrote: Hi all, just to let you know I will be away next week, so not able to video the meeting. cheers, Susan. No problems Susan, the iLecture digitiser is installed back in the venue and will be recording the screen and audio as usual - we'll just have to do without the video this time around. http://dbs.ilectures.curtin.edu.au/ilectures/ilectures.lasso?ut=692 -Mart Martin Hill email: mart at ozmac.com homepages: http://mart.ozmac.com Mb: 0417-967-969 hm: (08)9314-5242 -- The WA Macintosh User Group Mailing List -- Archives - http://www.wamug.org.au/mailinglist/archives.shtml Guidelines - http://www.wamug.org.au/mailinglist/guidelines.shtml Unsubscribe - mailto:[EMAIL PROTECTED]
RCD and UPS? (was: Re: 17 Powerbook sends vibrations through body ?)
On 02/04/2007, at 4:44 PM, Robert Howells wrote: Everybody How long since you used the Test button on your Safety switch ( RCD .. residual current device ) ? We unintentionally test our RCD every other week when something in our house knocks the stupid switch out. :-( After getting the RCD installed in our 25 year old house we ended up having to replace out Fridge, and our separate upright Freezer and change the time of the morning that our pool pump and electric booster on the solar come on to stop the blasted thing tripping when the dew point gets to a certain time or something. Our sparkie also ripped out all the wiring to the lights on our pergola and BBQ area (not in conduit) in his efforts to track down the problem. We still have something setting it off every few weeks or so. Yes, I know, we'll be thankful for it when it saves someone's life, but it is not without hassle in our case. :-( I've already had to replace the RAM in one of our Macs that was damaged after so many outages. I'm thinking of getting a UPS. Our expensive surge protecting powerboard isn't really a fantastic solution. Anyone have recommendations on UPS units? -Mart Martin Hill email: mart at ozmac.com homepages: http://mart.ozmac.com Mb: 0417-967-969 hm: (08)9314-5242 -- The WA Macintosh User Group Mailing List -- Archives - http://www.wamug.org.au/mailinglist/archives.shtml Guidelines - http://www.wamug.org.au/mailinglist/guidelines.shtml Unsubscribe - mailto:[EMAIL PROTECTED]
