On Tue, 2009-05-05 at 08:29 -0600, Robin Laing wrote: > Another issue is using capacitors that are close to the operating > voltage of the system. 12V and use 15V capacitors. This doesn't give > any overhead for voltage spikes or surges caused by charging and > discharging circuits. For electrolytic capacitors, they're only close to their capacitance when run close to their working voltage. e.g. A 10 microfarad 100 volt capacitor doesn't behave as a 10 microfarad capacitor if you run it at 12 volts. Circuitry should protect against spikes/surges with crowbar circuitry to clamp them down. Though, I really wouldn't expect to see a big spike in a 12 volt circuitry, unless it was a switchmode power supply. -- [tim@localhost ~]$ uname -r 2.6.27.21-78.2.41.fc9.i686 Don't send private replies to my address, the mailbox is ignored. I read messages from the public lists. -- fedora-list mailing list fedora-list@xxxxxxxxxx To unsubscribe: https://www.redhat.com/mailman/listinfo/fedora-list Guidelines: http://fedoraproject.org/wiki/Communicate/MailingListGuidelines