Do Transistors That Divide Voltage Exist?

[FortranMan]

So I know a transistor is built to amplify or multiple an input signal using a base voltage. Are there such transistors that are analog? That is the output voltage is amplified depending on the base voltage? If so, is there analogously a transistor that divides instead of multiplies? That is where the base voltage is in the denominator and reduces the output voltage if the base voltage is increased? Basically I am looking for a transistor that can perform the analog computation analogy of mathematical division.

 

[Asymptotic]

So I know a transistor is built to amplify or multiple an input signal using a base voltage. Are there such transistors that are analog? That is the output voltage is amplified depending on the base voltage? If so, is there analogously a transistor that divides instead of multiplies? That is where the base voltage is in the denominator and reduces the output voltage if the base voltage is increased? Basically I am looking for a transistor that can perform the analog computation analogy of mathematical division.

Read this June 1958 Radio-Electronics article, "Mr. Math Analog Computer".

 

[davenn]

So I know a transistor is built to amplify or multiple an input signal using a base voltage. Are there such transistors that are analog? That is the output voltage is amplified depending on the base voltage?

you also need to do some reading up on how a transistor actually works
their neither amplify nor multiply and transistors are analog

Very basically, their operation gives the "appearance" of amplification. That is the input current between the base and emitter (NPN Transistor) is not amplified, rather, it is used to control a larger current flow between the collector and emitter