There is nothing simple about a good vacuum tube tester. In fact, most tube testers were very complicated to set up for each different type of tube to be tested. Testing a quantity of different tubes ...

With the popularity of 3D printers and the current cult of vacuum tubes, it’s shocking we haven’t seen someone do this before. [Peter] printed his own sockets for a few vacuum tubes he had lying ...

It’s best to admit upfront that vacuum tubes can be baffling to some of the younger generation of engineers. Yes, we get how electron flow from cathode to anode can be controlled with a grid, and how ...