Reading an article about the first transistorized Hi-Fi amplifier ... it to work with silicon transistors. He also made some improvements to the push-pull bias circuit and limited the high ...

However, the most common modern transistor, the one that is found by the millions ... 3. How good an amplifier was your circuit? How much larger was the output current than the input current?

In 1945 Shockley proposed an amplifier design in which ... went on to invent the integrated circuit, embedding transistors and other electronic parts on one tiny piece of semiconductor.