Most all are center positive. I have a Compaq and it is center positive. Assume you know the polarity of the power supplies - just not the c'puter, right? Roger G. Mr. Fix-It Harrisburg, PA 17110 WebSite- http://mrfixit.netfirms.com Alternate - rogerfixit@xxxxxxxx FAX 510-740-3641; Tel: 717-540-0799 (shop) Royal19960@xxxxxxx wrote: > Hi. I have a compaq 1230 laptop and lost the power supply/ charger. I have > other compaq laptop supplies that will supply the correct volts/amps BUT > don't > know the polority of the plug. Can someone let me know if the center is + or > -? > Thanks in advance > Roy > > > Bonded TV Service > 5158 W Forest Home Ave > Milwaukee, WI 53219 > 414-541-9111 > Web hosting from only 4.17 @ month at BondedHost.com > over 8,000 tubes at Bondedtv.com > > > ----------------------------------------------------------------------------- > This Email List is accessible to the general public through search engines. > Remove: http://www.tech-assist.org/remove.htm > Set Vacation mailto:ecartis@xxxxxxxxxxxxx?subject=set%20techassist%20vacation > Lost Password: http://www.tech-assist.org and select "Login Problems?". > Email Archives: //www.freelists.org/archives/techassist/ > -- ----------------------------------------------------------------------------- This Email List is accessible to the general public through search engines. Remove: http://www.tech-assist.org/remove.htm Set Vacation mailto:ecartis@xxxxxxxxxxxxx?subject=set%20techassist%20vacation Lost Password: http://www.tech-assist.org and select "Login Problems?". Email Archives: //www.freelists.org/archives/techassist/