For the electronics enthusiast a tube audio amplifier makes for an interesting and unusual project, and for that reason it’s one tackled by many. [Keri Szafir] is no exception, and she’s ...

The video explains the operation of the vacuum tube, specifically the triode, which is essential in modern communication ...

We have to say that the amp [Terry] put these transformers to work in sounds pretty amazing — not a hint of hum. Good work, we say, but we hope he has a plan in case the vacuum tube shortage ...

Part 5 provides spec summary of the GP/R K2-W vacuum-tube op amp and discusses measurement constraints/conditions and LTspice modeled output. The K2-W vacuum-tube op ...

The C2800 Vacuum Tube Preamplifier features methodically ... the C55 and C2800 offer a lot of flexibility for connecting to power amplifiers. Their design allows for bi-amping configurations ...

Kelly suspected that solid state science might provide a new kind of amplifier to replace the vacuum tube in AT&T's phone system. The tubes amplified voice signals as they traveled through the ...