Collaborate Disseminate
There’s still a mystique around vacuum tubes long after they were rendered obsolete by solid state devices, and many continue to experiment with them. They can be bought new, but …read more Continue reading A Tube Tester Laid Bare
You can easily get carried away when trying to test things. For example, if you want to know if your car is working, you could measure the timing of the …read more Continue reading Roll Your Own Simple Tube Tester
[Mr. Carlson] has an old-style 1940-era radio tube tester, the kind that used to inhabit grocery and drug stores. It is in amazing condition and he was kind enough to …read more Continue reading Vintage Tube Tester Teardown
[M Caldeira] needed to test a tube and didn’t have a spare to do the old swap test. He also didn’t have a tube tester handy. Drawing inspiration from a …read more Continue reading Testing a Tube without a Tube Tester
There was a time when people like us might own a tube tester and even if you didn’t, you probably knew which drug store had a tube testing machine you …read more Continue reading Modern Tube Tester Uses Arduino
We think of punched cards as old-fashioned, but still squarely part of the computer age. Turns out, cards were in use way before they got conscripted by computers. Jacquard looms …read more Continue reading Your 1958 Punch Card Machine Tested Tubes
It can be difficult for modern eyes to make much sense of electronics from the 1960s or earlier. Between the point-to-point soldering, oddball components, and the familiar looking passives blown …read more Continue reading Restoring a Vintage Tube Tester to its Former Glory