An interesting phenomenon that some ‘leaky’ tubes, removed from conventionally biased amps, appear to improve when run with TubeSync. The reason may be that when the tube gets hot, g1/cathode leak causes a current increase, but it is automatically biased ‘back’ to compensate, which allows the tube to cool down again and thus reduce leakage et al. After a while the leak sometimes reduces or disappears completely – we surmise that the getter gets a chance to mop up stray gas molecules or the metallic deposit gets ‘boiled off’ the mica supports. This type of fault in a conventional amp would normally blow the HT fuse, however TubeSync can avoid is and rectify the problem! Cool eh?
