how to test tubes with your multimeter(filament continuity)


how to test tubes with your multimeter(filament continuity), from low to high power tubes (youtube.com)

 

G'Day all. My last post was concerning  a bad fuse or bad tube. I borrowed a tester but I'm not confident in its reliability due to inconsistent readings. There are no tube testers in the area. So what to do? I found this video about using a multi meter for testing. I'm sure it will not tell the whole story about the tube. I get the idea that that a tube with continuity may still be bad but will not cause catastrophic damage to the amp that it is inserted in. Am I on the right track? Is this test of any real value? Or is it a waste of time? Thanks

128x128artemus_5

Ok, Thanks guy. FWIW I just bought a tube tester. Hopefully that will answer some of my questions about my tubes

Buy an emission tester which will give you a good indication of how much life is left in the tubes.

I get the idea that that a tube with continuity may still be bad but will not cause catastrophic damage to the amp that it is inserted in.

Not really, a shorted tube can cause damage to the amp.

Simple tests for Tubes with a Multi Meter