Moth Tube Imp valve tester Review

Few 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