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In Reply to: RE: Keep believing that Eli... posted by cloudwalker on March 15, 2015 at 15:08:00
I will agree that solid state components have an unlimited life with all conditions being perfect however,this is seldom ever the case..Like Marty said,when semiconductors fail,it is often catastrophic because there is no weakening point for semiconductors.They either work or they don't because they either short or they open..Tubes OTOH can be weak in emission and still perform their function.
Everything needs maintenance at one time or another unless its a throwaway like the stuff you are talking about.All mainstream products today are designed with product obsolescence in mind.This is how companies stay in business.
As far as a component not having any moving parts,what you are saying is a Hafler DH200 power amp should never fail because there are no moving parts in it.Do you care to take a poll and ask how many people have seen a DH200 fail? The answer is a lot.
"If it measures good and sounds bad, it is bad; if it measures bad and sounds good, you have measured the wrong thing."
- Daniel R. von Recklinghausen
Edits: 03/15/15Follow Ups:
that tube amps are a better buy?
and that tube amp makers have "planned obsolescence "too?
and that I was thinking about "throw away stuff"?
Just trying to learn. Oh, how I wish I could give you the names of the people that have told me differently from experience. I think we are just going to have to agree to disagree.
Are these so called experts you site in witness protection?
I ask because anyone that gives out a opinion, and then doesn't have the guts to have their identity(s) be revealed (presumably so as not to have to defend their position), is an ass clown of the highest order.
I know a tech that has worked on literally hundreds, if not thousands of pieces of both solid state and tube gear. This tech has already stated his opinion on this subject, on this thread (he responded to you a couple of times), and it runs contradictory to yours.
Putting reliability aside; Tube gear just plain sounds better than SS gear. Don't believe it? Take a look at any guitar player of stature from Joe Satriani, Eric Clapton, Al DiMeola, George Harrison to Jimi Hendrix - Love them some tubes!
Your example of the modern day receiver being more reliable flawed. Let us see where your modern receiver (with its woefully inadequate minuscule power supply) is in 20 to 30 years. Don't get me wrong; I own a couple of those modern receivers and they do a adequate job for which they have been tasked - driving 5.1 surround systems. When they fail I will throw them out with the rest of the garbage, then head to Best Buy or Amazon to replace them.
Meat; It's the right thing to do. Romans 14:2
sorry to upset you so much.
these "experts" would have never told me what they did because they made their living doing this and these facts would have surely affected that.
why get so upset over an opinion? take it easy...
no kidding, I don't see much, 'upset' here.
I believe that you are ignoring evidence that would be useful to prove to yourself that your so-called expert has a rather worthless opinion on the subject. You are ov course free to ignore such evidence...LOL
For example you have yet to comment on the, 'no moving parts' topic. I got back into Hi-fi with a dead Carver PM900. That thing had a shorted driver transistor. It took most of the power supply filter rails with it. Once I got my hands on a curve tracer I found the bad one and a decade and half later it is still functioning( in its new owner's care ).
cheers,
Douglas
Friend, I would not hurt thee for the world...but thou art standing where I am about to shoot.
Please don't cite Carver as being the "superior" transistor gear. We carried the unreliable junk when I worked in audio. A customer convinced me to sell him a receiver against my recommendations, which was the only Carver receiver that I ever sold. Of course it promptly broke.
Note also that Carvers top of the line amplifier at the time was a tube amp. It was called the Silver Seven.
Last I heard, Bob Carver is still selling tube gear on eBay.
Thanks for making such a good argument for tube gear!
Dave
That is what it was CD...:)
None of its moving parts failed...it was instead one of those solid bits...heh-heh-heh. Anybody who has worked on stuff can find another example I am sure.
My Dynaco amps I got from my now passed Uncle are 1957 Mk.iii...and now they're my son's, fed from a blue tooth source. I expect he'll be able to do the same...:)
cheers,
Douglas
Friend, I would not hurt thee for the world...but thou art standing where I am about to shoot.
Let see: A Dynaco amp that is as old as I am and still working, versus a receiver that can't go a month without breaking. Which is more reliable? Don't get me started on "Flame Linear"!
Dave
IDK, that PM900 has lasted longer since I fixed it than the time between when it was made and when I acquired it...:)
But nevermind, it is not like I agree with that poster who disagreed with Eli. And to argue the other side, it isn't like there are no tube eaters out there...either fairly recent or original era. Buuuuuut, take a tube design that is not exceeding ratings, and feed it tubes and new electrolytics from time to time, and Eli's time frame is entirely legit.
cheers,
Douglas
Friend, I would not hurt thee for the world...but thou art standing where I am about to shoot.
I have a Pioneer tube integrated amp that I have yet to rebuild. They supposedly ran their tubes pretty hard.
Dave
If they were,you would probably see name calling or remarks of total condescension..We are simply pointing out that longevity and reliability are two different things..Just because a unit needs repair or maintenance along the way,doesn't mean its done for..That would be like junking your car when it needs a new fan belt or timing chain and gear set..You simply replace those things and it keeps going.
Now,there are ton a 70s and 80s amplifiers out there today with bad output transistors and you can no longer buy them.The Hafler I mentioned is one of these..Hitachi was the only company to make the the transistors so all you can buy is NOS if you can find them.You can take tube amps from the early 50s and you can still get new tubes for them and even have the output transformers rewound or bought in new production if needed in many cases.
"If it measures good and sounds bad, it is bad; if it measures bad and sounds good, you have measured the wrong thing."
- Daniel R. von Recklinghausen
Edits: 03/16/15
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