thankxxx for responce.infect my problem is this i cant find same volt at input stage transistors..i tried to make many time many circuits but almost the problems is same ..volts are not same on colloctor of input stage transistors..and one more important thing..why i apply the ground in circuit.volts show unblance at colloctor.and when i disconnected the groung from circuit ..volt are same ..i dont understand whats my faultt.i really dead tired due to this fault..and feeling hopeless..i follow same to same diagrame instrustions.but dont know where is the fault,,i m a new user here don,t know how to send u diagrame .if u have any potel address i will send u diagrame or pics with all details.. thankxxxx