My first post here!
I'm trying to understand signal flow through a point-contact transistor.
Just so you know, I have no electrical background, and am not even that good at math. The apparent squidginess of semiconductors is something that is baffling me.
Some Googling turned up this sequence (this one page in particular), which was partially informative:
(all on one line)
But it does not help answer the question of how current actually flows. I'm not talking about the actual *electrons*, which do go from negative to positive, but "current" as normally referred to when considering the convention that things go from the positive terminal of the battery to the negative one.
My problem is that there are TWO terminals on the battery, but THREE on the transistor. Also, the diagrams and animations on the Nobelprize site do not explain why there are TWO batteries shown. Apparently you are just supposed to know. And most cars do not have two batteries.
A poster in another group offered this attempt at clarification: "Think of a Y water pipe. One arm of the Y is smaller than the other.But the total water flow thru the bottom of the Y divides and part passes thru the left arm and part thru the right arm.You can control how much water passes thru the right arm by adjusting the flow thru the left arm.(but the water pipe does not have any current gain)"
I thought the flow was from emitter to collector, with the base being the control for E and C, but the above (and the Nobelprize page) contradicts that, so I'm obviously missing something.
These are pages from my site:
I am sure I have mistakes in there, but no one in the Honda groups have offered any clues as to what the errors are, if any. All I want is for the diagrams to be correct.
Any help is quite welcome.