>What's a good transistor to use to drive Common Cathode 7 segment displays? I would use a dual FET chip such as the Philips PHN210, two FETs in an SO-8 package, with capability in the amps range and low Rdson. For common anode use you can dual P channel ones as well. -- http://www.piclist.com hint: To leave the PICList mailto:piclist-unsubscribe-request@mitvma.mit.edu