If you open up the perennial favourite electronics textbook The Art Of Electronics and turn to the section on transistors ... own circuits. Simple but effective, the self-biasing amplifier.

The last group of circuits shown in Figure 6 add a single transistor in a Colpitts oscillator configuration ... uses the LM386 as both an audio amplifier and RF envelope detector, with both signals ...

A new technical paper titled “Accelerating OTA Circuit Design: Transistor Sizing Based on a Transformer ... meeting performance specifications in operational transconductance amplifiers (OTAs), and ...

IT is well known that changes in the d.c. characteristics of transistor amplifiers with temperature ... by minimizing these effects by suitable circuit design, or by the use of thermistors and ...