the file that i download is oscilloscope.rar. Inside this rar file, there is only oscilloscope.class and knob.class. May i know where can i download oscilloscope.java , which is the original source code? &nbsp;i am currently doing my final year project on a website that introduce the school oscilloscope and this applet is very useful to me. i have some experience with java , and i hope i can get the java file and modify it to introduce more controls of the oscilloscope. &nbsp;This is the link to the current oscilloscope website of my school &nbsp;, http://www3.ntu.edu.sg/home/askklee/scope/ .<br /><br />someone please sent the code to my email , arufuredo2@msn.com