Transistors work by using a small amount of electrical current to control a larger current ... The pattern is then used to guide the placement of the different types of semiconductor material. What ...

When we were in school, every description of how transistors work was pretty dry and had a ... in these videos would have cost a fortune to do back in the 20th century — just watch some of ...

However, it failed to work well at radio frequencies ... It just took time to find the right way to do it. By 1955, they produced usable transistors, even though the yield was at around 5%.

He didn't work in Shockley's group ... If the signal changed rapidly, as a voice coming over a phone line does, the transistor couldn't keep up and would garble the output. The problem lay ...