transistor

Oh Joy ! Another Google Groupie with a Googlemail account who doesn't know how to Google !

Graham

Load line - characteristic curves? Amount of input to the base as it affects collector current, at a given temperature - for linear operation - not saturation.

Your posts indicate that you are ignorant of basic transistor theory. There's lots of websites and books that will bring you up to speed painlessly. Do a little searching first.

Bipolar transistors (the common kind) can be used as amplifiers or switches. Saturation implies using it as a switch (on - off - no in between), Load line implies amplifier - output current is proportional to input current - based on the gain (beta) of the device. Gain of

Simple concept

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The word "transistor" is from "transfer" and "resistor". It lets you control a current with a much smaller current input. A "load line" is something that you add to the characteristic curves to determine the parameters of your particular application.

There will be lots more information here:

Good Luck! Rich