Although it sounds like some Star Trek McGuffin, a Q-Meter is a piece of test gear that measures the Q factor of a tuned circuit ... the unit even has an oddball acorn tube that you rarely ...

Here comes a new compact power amplifier that isn’t made in China: Pro-Ject Audio Systems’ Amp Box RS2 is made in Europe; it ...

Abstract: This article presents the amplification of nanosecond pulses using a Ku-band TE11 gyrotron traveling wave tube (gyro-TWT). The output performance is analyzed through simulation and ...

Abstract: Because of a relationship which exists between the properties of a vacuum tube triode and those of a transistor, it is possible to start with a known vacuum tube circuit and to transform it ...