PBS2 个月
Lesson 4
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 ...
Using only an ultra-bright white LED, red blinking LED, PNP transistor, and a diode, the circuit gives a strong visual indication of current consumption by blinking brighter and more frequently as ...
Glasgow University researchers have led work that could lead to a new generation of diamond-based transistors for use in high-power electronics. The team has found a new way to use diamond as the ...
The group was led by William Shockley and included Walter ... using the element germanium They called it the point-contact transistor. Its discovery was announced at a news conference, but ...
A marble statue of late Pope John Paul II is backdropped by the Agostino Gemelli Polyclinic in Rome, where Pope Francis was ...
The transistor then switches on a second BC547, which lights an LED. The whole circuit is built on top of a battery clip so it can be run straight from the top of a standard 9 volt battery.