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Life span of KT 88 Tubes

 

Bronze Member
Username: Markdavid

Post Number: 53
Registered: Feb-07
Hi , One of my friend is using a Tube amplifier in which there are four K 88 tubes , What will be the life span of these tubes if used with proper care.

regards
Mark.
 

Platinum Member
Username: Jan_b_vigne

Dallas, TX

Post Number: 13306
Registered: May-04
.

It depends on tube itself and the amplifier circuit it is plugged into.
 

Bronze Member
Username: Markdavid

Post Number: 54
Registered: Feb-07
The amplifier is Cayin A 88T and the tube is Cayin K 88 , Any idea about the life span of these tubes
thanks
 

Platinum Member
Username: Jan_b_vigne

Dallas, TX

Post Number: 13323
Registered: May-04
.

No, a "Cayin K88" is a rebranded tube from another manufacturer. And I don't keep any figures in my head for life span of each tube in each amplifier. Circuits that provide for a soft start to the tube as it powers up make more difference than anything else other than bias. Bias is either fixed or user adjustable. How the manufacturer chose to deal with tube bias is something you cannot change.


I accept the fact tubes are not forever, they must be replaced. If you are concerned about tube life, you probably shouldn't be looking at or using a tube product.


.
 

Gold Member
Username: Dmitchell

Ottawa, Ontario Canada

Post Number: 2052
Registered: Feb-07
My dealer once told me that a McIntosh representative told him that their tubes will last anywhere between 5 minutes and 5 years. I guess what that means is that like anything electronic, if it's gonna fail it'll likely fail right off the bat.
 

Silver Member
Username: Hawkbilly

Nova Scotia Canada

Post Number: 493
Registered: Jul-07
To put it another way, if he's worried about being without the amp, he should carry an extra set of tubes on hand.
 

Gold Member
Username: Dmitchell

Ottawa, Ontario Canada

Post Number: 2130
Registered: Feb-07
How much do a set of tubes cost anyway?
 

Platinum Member
Username: Nuck

Post Number: 11624
Registered: Dec-04
Hehe, from 5 bucks to 5 thousand?
 

Gold Member
Username: Dmitchell

Ottawa, Ontario Canada

Post Number: 2137
Registered: Feb-07
It figures...
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