Anyone else evolve beyond tubes?

Audiofeil, I'd guess that the 'manufacturer' was talking about the failure rate when they screen tubes to be used in their stuff, not the failure rate of tubes in service in the field, or by dealers testing tubes prior to sale. FWIW, I've heard of high failure rates in testing, lets say EI 12AX7's, for microphonics, but the ones that passed present little problem in use in the field.

I got tired of failed tubes and when I heard the s.s. Chapter Audio amp amd pre my questions were answered.I have since upgraded my amp to the incredible Norwegian Hegel H4A Mk2.I am in audio heaven and do not miss tubes at all,even thogh I can still appreciate them.

OK Newbee perhaps I misunderstood. That being said doesn't 50% failure speak to an incredibly flawed design and/or quality control process? Imagine if US automobiles (oops bad example) or politicians (oops another one) or audio reviewers (ditto) performed at that level.

Only kidding everybody.

Michael Elliot of Counterpoint talked extensively about tubes in my owners manual and refered to them as fragile little devices. Here is part of what he had to say on the subject:

"A tubes insides are far more fragile than the insides of a light bulb. In a light bulb, all the mfg has to worry about is long life and good light output. It doesn't matter if the filament wire is leaning to one side or if the coating of the filament has some loose flackes, the bulb will work. But a tube has about 1,000 times the requirements to operate satisfactorily. Everybody knows that if you shake a light bulb briskly for about 10 minutes there is a good chance the filament might break, making the bulb useless. The same concept applies to a tube used for audio, but to a larger extent".

Further he explains that the shipping process of tubes due to vibration cannot guarantee a perfectly working noiseless tube upon receipt. So far I have been fortunate and have yet to receive tubes that are noisey or don't work at all but that could change!