i used ckt on bread board and measured on dso …the output had only 800mv ac element of 40mhz while other section was dc part of about 4v . i utilized Vcc of 5v . what I would like is atleast 4v peak to peak in addition to 9v peak to peak if Vcc is 9V …looking ahead to quick replyCrystals vibrate at a specific frequency when stimulated, while os