This book starts with the working principles of basic electronic circuits, and introduces the characteristics and design methods of vacuum tube amplifier circuits from the shallower to the deeper leve
One day, Maya found a box. Due to the wear and tear, a row of numbers could be seen: "20121221". Maya was very curious and took great pains to open it. He saw something light green inside, which looke
1. Nyquist Theorem Nyquist Theorem, also known as Nyquist's criterion, states that in an ideal low-pass channel (no noise, limited bandwidth), the limit code element transmission rate is 2WBaud. Where