Forum: Reliability & Maintainability Questions and Answers

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Posted by: M Boerner (boernermc@aol.com )
Organization:bai
Date posted: Tue Sep 28 14:20:38 US/Eastern 1999
Subject: Reliability Predictions versus Actuals for electronic equipment
Message:
Looking for comparative data of MIL-217 predictions vs field actuals by equipment type (or WUC) for electronics for use as a reliability derate factor. Thanks in advance for your assistance.

Replies:
Prediction Vs Actual
Bruce Dudley Thu Sep 30 10:23:49 US/Eastern 1999

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Posted by: Bob Valerius (robert_m_valerius@mail.northgrum.com )
Organization:Northrop-Grumman Oceanic Systems
Date posted: Tue Sep 28 9:20:58 US/Eastern 1999
Subject: Reliability of Servo Valve Torque Motors
Message:
Hi, Does anyone have any info regarding torque motors and how to model them? Thanks in advance.

Replies: (list all replies)
Torque Motors
Bruce Dudley Thu Sep 30 10:24:47 US/Eastern 1999
Electric motors and alternators
Brent Wolford Thu Oct 5 15:34:22 US/Eastern 2000

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Posted by: Roberto Poli (design@gitronica.com )
Organization:Gitronica
Date posted: Tue Sep 21 2:05:21 US/Eastern 1999
Subject: Buzzer reliability
Message:
Does anybody know how piezo buzzer reliability change with temperature(Acceleration factor)?
Thanks in advance

Replies:
Piezo Buzzer Reliability
Bruce Dudley Thu Sep 30 9:50:29 US/Eastern 1999

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Posted by: Joseph Murphy (jhm@resprod.com )
Organization:Research Products
Date posted: Thu Sep 16 12:47:09 US/Eastern 1999
Subject: Transformer Reliability
Message:
Hello. I'm interested in finding out if there is any useful information out there regarding reliability estimates for Class II transformers? Specifically, am curious if there any work has been done to characterize the reduction in life as a function of core/windings temperature. Any help or direction appreciated. Thanks. JOE

Replies:
Transformer Reliability
Bruce Dudley Wed Sep 22 9:20:29 US/Eastern 1999

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Posted by: Tammy Roter (troter@teledata.co.il )
Organization:ADC-Teledata
Date posted: Thu Sep 16 6:55:03 US/Eastern 1999
Subject: storage life of surge(gas) arresters
Message:
Hello,
I am interested in the storage life of surge(gas) arresters- with the assumtion we store it according to it's spec. I was told that all passive device have the period of two years storage life. is it so ? Thanks in advance. Tammy Roter

Replies:
Storage Life, Gas Surge Arresters
Bruce Dudley Thu Sep 23 9:44:27 US/Eastern 1999

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