Testing Tubes

[humanbn]

Hello,

Is there anyway to test a tube with a standard multimeter?

[sumgai]

human,

Nope, sorry, all you can do is determine if the heater filament is connected or not. But you can do that just by looking at the tube within its socket - no little glow equals an open filament. You can use your multimeter to do a voltage check on the filament pins of that socket, so there's no need to measure the tube with a meter.

The rest of the tube's functions are a) high voltage, and b) dependent on there being no physical connection between the various elements. They all operate in vacuum.

HTH



sumgai

[vintagekiki]

Here is a website for a home made tube matcher
home.comcast.net/~priceamp/

DIY Tube Matcher
priceamp.home.comcast.net/~priceamp/tubematcher.htm
priceamp.home.comcast.net/~priceamp/pics/tubematcher/schematic.pdf

DIY Preamp Tube Tester
priceamp.home.comcast.net/~priceamp/diypreamp.htm
priceamp.home.comcast.net/~priceamp/pics/preamp/schematic.pdf

About replacement, set bias, use a voltmeter to test a tube amp, safety tips, troubleshooting and .... please visit

video.aol.com/video-search/query/How%20to%20Change%20Tubes%20on%20Vacuum%20Tube%20Amplifiers