I like to announce a new video as course material. With the need to amplify small signals we need to talk about a very generic component called the Operational Amplifier. This was so far not required because we did not need to amplify small signals or build electronical devices based on it. With the scalar wave communication project that has changed. This component is a basic subject for every electronics student. I follow suit to introduce it because we have many devices to build based on it. You find the video under a new menu point under research and courses called Active Components. As with all course material it is only available to members