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Tube Failure - High-End Audio Discussion Forum | Audiogon ...
https://forum.audiogon.com/discussions/tube-failure
Power tubes in a Mac and VTL 2-5000 hours on power tubes. Signal valves depends on the duty and what it’s being used for, sometimes only half the valve is being used, but you still need good valves to begin with. Same 2-5000 hours. I’ve lost power and signal tubes..Sometimes problems with one can adversely effect the other..
How To Tell If Your Tube Is Bad - thetubestore Blog
https://blog.thetubestore.com/how-to-tell-if-your-tube-is-bad/
Loss of Power and other Odd Noises. Sometimes you will hear strange sounds, loss of power, or heavily distort sound. These are signs that a tube is failing. Often power loss that seems like the amp is performing at half power or less will be one or more bad power tubes, or even a dying phase inverter tube.
DIAGNOSING TUBE PROBLEMS — Diamond Amplification
http://www.diamondamplification.com/blog/2016/9/18/diagnosing-tube-problems
Crackling, squeals and feedback, excessive noise and muddiness or low output are all evidence of tube problems. Power tubes. The two main symptoms of a power tube problem are a blown fuse or a tube that begins to glow cherry red. Either are typically indicative of a power tube failure. Some failures can be an intermittent short and some can be a tube failure. If you …
How to Diagnose Your Amps Bad Tube – Tone Topics
https://tonetopics.com/tell-amps-tubes-gone-bad/
A faulty tube will sound duller than the other tubes or sound like it has components rattling inside. This is a clear sign that the tube has failed and needs a replacement. Keep in mind, It’s rare that more than one tube will need replacing .
Common Tube Amp Troubleshooting Scenarios
https://www.mojotone.com/blog/common-tube-amp-troubleshooting-scenarios
These are problems that almost every tube amp owner has encountered over time: Tubes not lighting up, fuse(s) blowing, and bad ground connections. Today’s article will present these broad problematic scenarios and provide numerous troubleshooting techniques for each.
Types and causes of tube failures, what lo expect …
https://worldradiohistory.com/BOOKSHELF-ARH/Sams-Books/Getting%20The%20Most%20Out%20Of%20Vacuum%20Tubes%20-%20Robert%20B.%20Tomer.pdf
A tube that fails to meet any one of several tests may still perform with complete satisfaction in most equip ment. A tube which meets all normal tests may fail to work satisfactorily in some equipment. Most tubes, new or old, contain some measurable defects; yet many tubes which are rejected as unusable will have no measurable defects.
Audio Problems? Here's What They Sound Like (Part 1) - …
https://www.youtube.com/watch?v=qI50twkMjzI
How to identify audio problems. Actual recordings of faulty audio systems including sound cards, TV speakers, subwoofers, etc.Use the Extended Audio Test fo...
How to Fix No Sound/Audio Problems on YouTube Online …
https://www.videoconverterfactory.com/tips/no-sound-on-youtube-online-playing.html
The sound is turned off. Check if any sound functions have been activated on the computer. If not, to ensure that you can hear YouTube video, try the following: (1) Adjust the computer and speaker volume. (2) Modulate the YouTube built-in voice controller at the bottom right of the video player.
How to Fix Windows 10 Audio Sound Problems [3 ... - …
https://www.youtube.com/watch?v=rtPf5igHNn8
This video will help you to fix your audio or sound problems in your windows 10 computer. Many people are facing different sound problems in windows 10 espec...
When Good Amps Go Bad - Analog Bros
https://www.analogbros.com/tech/articles/goodgobad.html
Occasionally the heater or filament opens up, completely shutting off the tube. Another common failure is caused by the chemical coating on the cathode (which when heated produces the free electrons attracted by the plate) being exhausted or stripped (TIP.....this stripping can be minimized by always allowing the tubes to completely warm up for about 2 minutes before …
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