Transistor Tutorial
Transistor Terminology A transistor has three legs: a collector, an emitter and a base. Below is the symbols for an NPN and a PNP transistor. NPN transistor https://web.archive.org/web/20081029225342/http://pagead2.googlesyndication.com/pagead/ads?client=ca-pub-2757683140936137&dt=1225340342608&lmt=1612436893&output=html&slotname=6542966663&correlator=1225340342602&url=https%3A%2F%2Fmayothi.com%2Ftransistors.html&ea=0&frm=0&ga_vid=852767767.1225340343&ga_sid=1225340343&ga_hid=1881404826&flash=0&u_h=864&u_w=1536&u_ah=834&u_aw=1536&u_cd=24&u_his=17&u_nplug=3&u_nmime=4 PNP transistor Transistors as switches The easiest way to understand transistors is to think of them as switches. You can switch a big current (between the collector …