Have not tried this but someone once said by putting a diode in series with the lamp but as this would be half wave rectification I would think a full diode bridge would be better. But would this help with the turn on burn out problem? Maybe a full wave bridge and a capacitor on the DC side would help to slow down the turn on pulse to the bulb while the capacitor is charging. _______________________________________ Roy Tauranga New Zealand _______________________________________ -- No virus found in this outgoing message. Checked by AVG Anti-Virus. Version: 7.0.300 / Virus Database: 265.8.5 - Release Date: 3/02/2005 -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist