How on earth could a single transistor form the heart of a radio ... On the left: J310 RF amp, centre: J310 regenerative receiver, right: 2N3904 audio amp. It is this last application that points ...

Over the recent weeks here at Hackaday, we’ve been taking a look at the humble transistor ... a high-impedance audio preamp or a low-noise RF amplifier, and FETs are a good choice for high ...

The first transistor was about half an inch high. That's mammoth by today's standards, when 7 million transistors can fit on a single computer ... first semiconductor amplifier, because when ...