IVP wrote: >=20 > With the original 1000uF I started with, as the circuit draws only > 250mA, there's about 2Vp-p of 50Hz ripple on ~ 14VDC Duff diode in wall wart? Mine are mostly(all?) full bridge so ripple is=20 100Hz. George Smith --=20 http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .