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.
While the previous gain stages are voltage amplifiers the power tubes amplify power, meaning voltage and current. The schematic doesn't show power tube grid voltage so we'll ignore the signal loss caused by the 220k grid leak resistors and assume 23 VAC on the power tube grid for a 14.6 gain to 174 VAC.