The humble transistor radio is ... It’s an extremely conventional design of the era, with a self-oscillating mixer, 455 kHz IF amplifier, and class AB audio amplifier. The devices are a little ...

Light-triggered switches; Semiconductor switches Switching ampliers audio amplifiers , class ... tests indicate that the design of a 200-kW, solid-state rf power system operating at 352- MHz and ...

Class A devices feature a design in which the output stage passes current at all times, even when the input stage is idle. Class B devices do not pass current when the output device is idle. Class AB ...

The essential conditions for a bipolar junction transistor to work as power amplifier are illustrated in this chapter. Sometimes the output of an amplifier is used as the input of another amplifier in ...

We’ve learned a bit about speaker cabinets and their design, so it’s time ... Is this £10 Chinese audio kit better than any transistor amp simply because it has a couple of tubes?

The British high-end hi-fi brand is reviving the design 57 years after it first made transistor-based amplifiers respectable. Teased in prototype form at May’s High End audio show in Munich ...