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Blue Glow in Tubes
Blue Glow In Tubes FAQ
This document is intended to address the frequently asked questions reguarding the blue glow frequently seen in power electron tubes or valves. I welcome contributions, criticisms and corrections.
Please send your comments to: larrysb@aol.com
Q: "My tubes are glowing blue. Should I worry?"
A: No. Blue glow is perfectly normal. It's an artifact of operation of the tube. If the amp is otherwise working fine, relax and don't worry about it all.
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