hey Everyone; I found an old design for a voltage-step-up circuit which includes NE46134 but I can't seem to find the piece itself and the model in Proteus and OrCAD. Thus I am seeking for equivalent rf-transistor that I can grab it's model and do the simulation first then move on with the implementation. Cheers Y. --=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 .