A vacuum tube can be tested with an array of power supplies and meters if you have detailed schematics and tube test procedures. However it is easiest to use a standard Tube Tester. In the day there you could find self service box-like testers in certain drug stores or part supply stores. Most metropolitan areas still have electronic stores that specialize in selling Radio and Vacuum Tubes, and they would have tube testers that you can access. Ebay lists a number of vacuum tube testers but you need to make sure its working and that it has the booklet to set the many test switch positions for the particular tube you want to test.
vacuum
the vacuum tube
A vacuum tube does not contain any gases. All the gases are evacuated from the tube and only vacuum is left.
A tube tester is a piece of electronic equipment designed to test the properties of a vacuum tube. The first tube testers were used in World War I to check the tubes in communication equipment.
A vacuum tube is simply a tube with no oxygen nor carbon dioxide in it (aka no air).
Millman's theorem
who made the vacuum tubes
when was test tube first made,when and who?
The BUN test is performed on a sample of the patient's blood, withdrawn from a vein into a vacuum tube. The procedure, which is called a venipuncture, takes about five minutes.
A lipase test is performed on a sample of the patient's blood, withdrawn from a vein into a vacuum tube. The procedure, which is called a venipuncture, takes about five minutes.
The transistor replaced the vacuum tube, allowing radios to get much smaller and portable.
test tube is classified in to various types namely hard test tube ,boiler test tube,20 ml test tube