Moth Tube Imp valve tester Review
Posted on 2010-12-23 16:50:53 by Thomas De MaesschalckFew areas of hi-fi are as apt for tweaking as valve amplifiers. At the very least, changing valves is easy since they almost invariably plug in and out. Alternative and/or upgrade valve types are widely available for the commonest varieties. Valves wear out, too, making replacement a maintenance job (though for most signal valves a life of several years should certainly be expected).
Link: Techradar
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