`  == Transistor ==  Yep, you've got a bite, let's talk about it. Do not bicker behind my back, let's take this the formal way, the argument way.  What is it that you don't like about my definition of a transistor.  ``It is based on the principle of dual resistance, tending to infinite and zero, and hence behaving as an insulator and a conductor, based on its vector alignment in a circuit. It is a discrete form of electrical filter circuits.``   It is a filter, it allows only unidirectional passage of current.  Vector alignment is the most critical part of this definition. A simple copper wire will conduct any way you connect it. But a transistor has a direction, if you switch it, it won't work. What the inventor (I don't know him and I don't care about him) has done here is craftily created a unidirectional resistance which'll work as an insulator or a conductor based on HOW it is placed in the circuit, forward or backward.  No, it is not a simple ON-OFF thing. It is a special case of discrete resistance from amongst a host of other filters. A capacitor can filter as well, but it does not do it in discrete amounts.  ``Garbage``, I think you need to go home and do some reading.  And I also note a tinge of hate,for Indians, this is John Churchill, and I need you soldier, I need you.....tonight....:))))  We'll discuss more later.  Buh-Bye....Kiss you...Kiss you....come here you cute thing...:)))`