Each end of the transistor is made of a semiconductor material that is saturated with electrons. The NPN transistor is the most popular and common. The difference in the type of transistor depends on how it is manufactured. Each transistor is referred to as either a PNP or NPN transistor. The location of the emitter and collector depend on the type of transistor being used. You will see an image of this transistor later in the lesson. The leads on either side are called the Collector and Emitter. In this lesson, we will learn to use the transistor as a switch. Transistors have made fast and small computers possible. Either that or the internal resistances are very small.Transistors and LEDs have revolutionized our modern world. SInce that NPN has an Ic=1A, it means that the default values for the Falstad transistor are quite generous. If you choose a model from LTspice's database (right-click on the transistor, Pick New Transistor) and choose 2SCR293P (for example), the values will come closer to what you see in the Falstad simulator. I can't tell you which values are for Falstad, but, clearly, they are different. In LTspice's case, you can see which values are by looking in the help at LTspice > Circuit Elements > Q. ( edit) The reason why you see different numbers is because the default values differ, as mentioned in the comments, too. That's because, the way you set it up, you're running a "sweep" from 0.75 V to 0.75 V, in steps of 0.75 V, which translates to one point, only, which means LTspice will consider that as another way of spelling. dc op point with the command you have in the picture only brings up the error log just like in my screenshot. Also, I don't know what you did before, but running a.
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