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In Reply to: RE: Tubes tested & burned in posted by Jim McShane on February 16, 2017 at 11:59:28
You can't improve a tube's reliability by removing lesser tubes around it.
Improvement in reliability comes from improvements in manufacturing.
"I can't compete with the dead" (Buck W. 2010)
"$45 gets them out the door tomorrow. $50 gets them out the door yesterday" (Byrd 2016)
Follow Ups:
You're grasping at straws IMHO. While any individual tube can't be changed once it's made, the overall quality of any production run of tubes is raised by eliminating tubes with issues.Why do you think automotive quality ratings are measured by the number of problems per 100 vehicles?
Quality is judged by evaluation/analysis of a reasonably sized sample of the product being evaluated. By weeding out problematic items from the sample the overall quality level goes up. And any individual consumer is more likely to have a satisfactory experience with the product as a result.
Finally, think of it this way. If a customer buys a quad of tubes from me and one fails, is it accurate to say that tubes I sell fail at a 25% rate? Well, if you limit it to tubes sold to him - yes. But not when the sample is larger because only a few purchasers have a 25% failure rate. Most have a 0% rate! Which means that the more infant mortality prone tubes I weed out the better the odds of any given purchaser having a 0% failure rate - THE BETTER THE OVERALL QUALITY for any given purchaser. That's why proper testing and all that go with it - including burn-in/run-in - is one path to improved quality.
That's all I have to say on this.
Edits: 02/16/17
Say all you want, or not, it makes no difference to me. Different views. Different news.
"I can't compete with the dead" (Buck W. 2010)
"$45 gets them out the door tomorrow. $50 gets them out the door yesterday" (Byrd 2016)
Well, it is interesting and of some importance to me what you say since reasoned debate often can clarify an issue - or at least encourage further thought.
I'm genuinely sorry that you find it uninvolving.
Now I GOTTA run!
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