Date: Fri, 12 Oct 2001 12:13:40 +0800 From: Raymond <[EMAIL PROTECTED]> Subject: Re: [LIB] Car power adapter
>Oh.. the reason I was getting buzzing through the line output was because the >converter I got from Circuit City converted 12v to 110AC. I had to plug the Libretto >AC power converter into that converter to power the Libretto, and I was told that the >noise was created in the interaction between the two. I'm in Australia so I've got no idea what the equivalent stores in the US would be but Jaycar Electronics here sells a DC to DC switchmode power supply designed for running laptops off a cigarette lighter. It can boost an input of between 12 volts and 15 volts to a regulated 15 to 24(!) volt 3.5 amp supply (without going from DC to AC and back again). That'd be more than enough for the libby (the libby's own switchmode supply is only rated at 2 amps). It sells for $90AUD (about $45USD I'd say). Unfortunately, the catalogue I've got doesn't mention a brand name ... it looks a lot like a slightly bigger version of those normal cigarette lighter adapters though - like the ones for CD players and the like (except those normally only convert voltage down from 12 volts where this one converts up). Oh ya, and your buzzing is probably because your inverter creates a modified sinewave (really just 2 or more square waves put together) which the switchmode supply for the libby won't like. - Raymond ************************************************************** http://libretto.basiclink.com - Libretto mailing list http://libretto.basiclink.com/archive - Archives http://www.picante.com/~gtaylor/portable/faq.html - FAQ -------TO UNSUBSCRIBE------- Reply to any of the list messages. The reply mail should be addressed to: [EMAIL PROTECTED] - Then replace any text on the message's subject line: cmd:unsubscribe --------TO UNSUBSCRIBE DIGEST------ Do above but with this on subject line: cmd:unsubscribe digest **************************************************************
