>Any ideas on how to get negative volts? I have only one power source... 12V positive.
Just add another 12v DC power supply and you're good to go. Most op amps have a wide input operating voltages. See: http://www.sciencelobby.com/operational-amplifier/opamp-dual-power-supplies.html /* PLUG: http://plug.org, #utah on irc.freenode.net Unsubscribe: http://plug.org/mailman/options/plug Don't fear the penguin. */
