I have had two power adapters for 3400's and both produced heat, whether charging or just at idle. The power adapters for all my 100 series machines have produced heat the same way. All the power adapters for my audio electronics produce heat (eg my Sony portable recorder). The transformer I use to step up from 100 volts Japanese household current to 120 volts for my North American audio elements produces a fair amount of heat when absolutely no current is being pulled from it by the system it powers up; therefor I unplug it when not being used to save the bit of power which is being disapated as heat.
The question that may be important may not concern whether or not it produces heat, but HOW MUCH heat. If it becomes uncomfortable to handle, I'd be concerned and not leave it unattended. Someone with more authority in electrical theory and practice may comment better in regards to how transformers/converters receive current and behave both under load and idle. And he/she may be answering some questions I have myself. - Lorne Lorne Spry in Sendai (Honshu) JAPAN -- PowerBooks is sponsored by <http://lowendmac.com/> and... Small Dog Electronics http://www.smalldog.com | Enter To Win A | -- Canon PowerShot Digital Cameras start at $299 | Free iBook! | Support Low End Mac <http://lowendmac.com/lists/support.html> PowerBooks list info: <http://lowendmac.com/lists/powerbooks.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/powerbooks%40mail.maclaunch.com/> Using a Mac? Free email & more at Applelinks! http://www.applelinks.com
