PROF. L. B. ARGUIMBAU'S title is perhaps more suitable for one of those gloomy, but useful, volumes cataloguing every conceivable circuit in which valves have ever been used or misused, for he has ...

The project was created to supply the increasing demand for prototype vacuum tube circuits with additional features such as speakers, output transformers, and LEDs. The project was created to supply ...

It was a cold January Saturday night in Chicago and we had big plans. Buddy Guy’s Legends bar was packed. We setup directly under one of the PA speakers less than 15′ from the stage. Time to celebrate ...

Linear, small-signal AC models can be useful in the analysis and design of vacuum-tube-based circuits. Under large-signal conditions, nonlinear models are typically required. Almost 120 years ago, ...

The circuit was designed to create a line preamplifier by acquiring the use of double triode tubes. The circuit comprises of three parts, the main preamplifier circuit with tubes, the input selector ...

Science keeps discovering new worlds and industry keeps conquering them—sometimes absorbing a few casualties in the process. After the transistor was invented, it caused trouble for many vacuum-tube ...

Retro technology makes a comeback in a nanoscale transistor that is lightweight, low cost, and long lasting. Vacuum tubes have been retro for decades. They almost completely disappeared from the ...