pseudo-, quasi- semi- and. Pseudo- comes from the Greek for false/lie and refers particularly to something not genuine. Quasi- comes from the Latin for almost and refers to something that is almost something else. Semi- is the Latin for half and refers to something that is half-something else In late usage, however, all three have been used to mean sort-of-.
2 Channel Amplifiers. 2 channel amps, or stereo amplifiers, are simple solution for upgrading a car audio/stereo system. As a general rule, 2-channel amps are intended to output sound that can be faded between a left speaker and a right speaker, however; many stereo amplifiers can be to power a car subwoofer. Recently Viewed.
Best Answer: The 'h' (lower-case) stands for 'hybrid model'. Transistor amplifiers may be modeled as 2-port devices with 1 port being the 'input' and the other port the 'output'. Any 'black box' 2-port device has sets of parameters that can be used to describe the electrical characteristics of what's inside the box. One type of these parameters is called the hybrid set, or h parameters. For the common-emitter bi-polar junction transistor amplifier h21 is called hfe. 'h' is for hybrid, 'f' is for 'orward, 'e' is for common Emitter. The difference between hFE and hfe is: FE is for a fixed DC bias and a fixed DC current gain (and that must be specified for each value of hFE).