Part 1: Light Touch Construct the first circuit using a single transistor, an LED, a power source, and a resistance. The brightness of the LED will indicate the relationship between the current ...

200 x 200 mm) Everyone of the ~42,300 transistors were hand-soldered to one of the massive PCBs, which look more like interactive circuit diagrams ... RAM into a gigantic LED wall on which ...

To make a voltage regulator from the LED circuit shown here, all you need to do is add a transistor in place of the LED; have the TL431 turn the transistor on when the voltage drops below a target ...

The group was led by William Shockley ... created an amplifying circuit that seemed to work, using the element germanium They called it the point-contact transistor. Its discovery was announced ...