In order to achieve useful amplification from a transistor ... do your biasing correctly, your amplifier output bias level will not drift significantly with time, temperature or component variations.

Most amplifier and oscillator circuits were originally designed during the vacuum-tube era, and they have been converted to transistors and ICs with modifications that relate primarily to the ...

Over the recent weeks here at Hackaday, we’ve been taking a look at the humble transistor ... We have an amplifier. A simple FET radio receiver circuit showing FET biasing.

implementing as it does a complete simple op-amp with five transistors. Looking at the circuit diagram it follows the classic op-amp with a long-tailed pair of NPN transistors driving a PNP gain ...