- 20 years ? - djk 18:07:44 06/30/09
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- In Reply to: RE: Reliability of Carvers when left accidentially powered on. posted by FusionLover1 on June 30, 2009 at 17:07:46
After 20 years the Carver didn't owe you anything.
If you liked it, fix it. It will probably not be inexpensive, and all the electrolytics should be replaced (in addition to fixing what is actually wrong with it).
The failures had little or nothing to do with leaving it on.
I had a piece of equipment I deliberately left on. After a new guy started turning it off and on every day it died. That is the normal course of events, not yours.
Edits: 06/30/09
- Exactly! - Allen Wright 13:14:57 07/01/09
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- In Reply to: RE: 20 years ? posted by djk on June 30, 2009 at 18:07:44
We suggest our preamps are left on 24/7/365 as the tubes and all parts will last longer that way. And of course will always sound it's very best, not needing to warm up for each listening session.
Anything well designed will appreciate this procedure, turning it on anf off all the time can shorten the unit's life, not lengthen it.
Your Carvers died because they were ready to die, not just because they were left on.
Getting them fixed? That's up to you.
Regards, Allen (Vacuum State)
- RE: Exactly! - Victor Khomenko 06:40:57 07/02/09
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- In Reply to: RE: Exactly! posted by Allen Wright on July 01, 2009 at 13:14:57
***We suggest our preamps are left on 24/7/365 as the tubes and all parts will last longer that way.
Well, the jury left long time ago, and it is still out on that one. That is certainly one common opinion, but strictly speaking, not based in any reality.
If I use my equipment for one hour every year... should I still keep it on?
What if I use it once a month?
Once a week?
Tubes DO wear out when running, there is no way around that. It is also pretty safe to presume that today the great majority of tubes get replaced not due to hard failure but wear out. Therefore one might conclude the thermal cycling is definitely not the main killing mechanism responsible for tube degradation.
Furthermore, constant elevated temperature will - without any doubt - accelerate the drying out of electrolytic capacitors.
Life of many electronic components is rated in hours... and for good reason. There are over 8000 of them hours in a year.
One should also not consider all thermal cycling equal. It can be made more or less severe.
As often is the case in life, there is no simple answer.
Edits: 07/02/09
- Higher energy bills? Green amps? nt - Don.Walker 10:29:06 07/02/09
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- In Reply to: RE: Exactly! posted by Victor Khomenko on July 02, 2009 at 06:40:57
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- RE: Exactly! - Victor Khomenko 06:40:57 07/02/09
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- Exactly! - Allen Wright 13:14:57 07/01/09
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