In Reply to: What is the pinging I hear when I first turn on my amps? posted by 2bkurius on December 18, 2011 at 09:29:18:
Filament springs tensioning as the tube warms . Nothing to worry about unless the noise is continuous .
What output tubes are you using ?
Al
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Follow Ups
- RE: What is the pinging I hear when I first turn on my amps? - Al Noakes 12:58:17 12/20/11 (0)