Enormous dimensions, complicated military calculations, and thousands of vacuum tubes—this was the early supercomputer.

If you want to enjoy Hi-Res audio on the go, then this new music player from Shanling may be one to check out.

The amp is based off the 6T9 design created by Spare Time Gizmos, and incorporates a pair of 6T9 vacuum tubes, hence the name. He wired things up in an afternoon, then got busy drilling holes in ...

A vacuum tube is just that: a glass tube surrounding a vacuum (an area from which all gases have been removed). What makes it interesting is that when electrical contacts are put on the ends ...

But before even those transistor-based computers is a retrocomputing era rarely touched on: the era of programmable vacuum tube machines. [Mike] has gone back to the 1950s with this computer which ...

Two years in development, the Peluso P-24 is built as a tribute to the legendary AKG C 24 stereo tube condenser microphone. It hosts two complete large diaphragm condenser (LDC) vacuum tube microphone ...