>the only time I saw such things with a >pic 16f84 was when I >forgot to put nano level capacitors on >the powerline This unit is very well supported. It's very clean. I can generate the response AT WILL with clean AC simply by varying its amplitude. Andy ================================================================== Andy Kunz - Montana Design - 409 S 6th St - Phillipsburg, NJ 08865 Hardware & Software for Industry & R/C Hobbies "Go fast, turn right, and keep the wet side down!" ==================================================================