> Does anyone have any words of wisdom to share? Phil, I use the DALC208SC6 diode arrays in cellphone applications, as recommended by the modem manufacturer to protect its lines from transients. Probably works against hobos too http://www.datasheetcatalog.org/datasheet/stmicroelectronics/6477.pdf -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist