i used ckt on bread board and calculated on dso …the output had only 800mv ac ingredient of 40mhz even though other component was dc ingredient of all over 4v . i applied Vcc of 5v . what I need is atleast 4v peak to peak and likewise 9v peak to peak if Vcc is 9V …looking ahead to brief replyLower Sounds: Crystal oscillators make sure its signa