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  1. jobeth

    High Speed I/O - Data Rates

    Hello There, I am trying to better understand the typical data rates, frequencies, and basic info on some of the higher speed I/O protocols out there such as: Ethernet 10 Base T, 100 Base T, 1000 Base T Fibre Channel Mil-Std-1553 DVI Can you help me fill in some gaps? What are the actual data...
  2. jobeth

    Temporay Assignment (Help)

    I have a temporary engineering assignment with my employer brewing at Boeing in Seattle. Does anyone have experience with job relocation issues? I wanted just to ask if anyone has or had an exit strategy for returning back home after thier assignment was over. Do you get something in writing...
  3. jobeth

    Jack Screw Connector Issue

    Yes it is in the center with no eccentric loading concerns. The thread depth is about 8 mm minimum. What I plan to do currently is use Dow Corning 321 dry film lube and mate the thing. William H. Bernhart, P.E. I work as a development engineer for AMP - Tyco Electronics located near...
  4. jobeth

    Jack Screw Connector Issue

    Hello There, I am working with a 303 SS jack screw with M5 threads. The connector mating load is predicted to be about 20 pounds. The torque I have specified is 10 inch-pounds. My problem is I am failing the extrenal threads in a short amount of time (25-30) matings. Do you reccomend...
  5. jobeth

    Aircraft Connector - Aluminum or Stainless Steel

    Hello There, I am trying to understand the implications of making a electrical connector shell such as ARINC 600 out of stainless steel as compared to aluminum. What are some of the concerns anyone might have regarding these two materials when installed as a connector shell in the wheel well...
  6. jobeth

    dB and Differential Pairs??????

    I am trying to understand in better depth what the meaning of dB and differential pairs are? Can anyone provide some insight? Thank you in advance. Bill B. William H. Bernhart, P.E. I work as a development engineer for AMP - Tyco Electronics located near Harrisburg, PA. I help design...
  7. jobeth

    Disposable Batteries

    Thank you !!!!!! William H. Bernhart, P.E. I work as a development engineer for AMP - Tyco Electronics located near Harrisburg, PA. I help design interconnections and electrical connectors for aerospace applications.
  8. jobeth

    Mbs Signal........What is the frequency?

    I need to run a 400 Mbs (mega bit per second) signal through a connector. My question is: What is the frequecy that this signal is running at? Thank you in advance for any information. Bill B. William H. Bernhart, P.E. I work as a development engineer for AMP - Tyco Electronics located...
  9. jobeth

    Disposable Batteries

    Hello There, Where can I find the overall dimensions OD and length of the standard battery sizes AAA up thru size D? Thank you for any information. Bill B. William H. Bernhart, P.E. I work as a development engineer for AMP - Tyco Electronics located near Harrisburg, PA. I help design...
  10. jobeth

    geometric tolerancing exam

    Thank you!!! William H. Bernhart, P.E. I work as a development engineer for AMP - Tyco Electronics located near Harrisburg, PA. I help design interconnections and electrical connectors for aerospace applications.
  11. jobeth

    We are machining an aluminum connector shell out of 6061. The geometry

    Thank you!!!!!!!!!!!! William H. Bernhart, P.E. I work as a development engineer for AMP - Tyco Electronics located near Harrisburg, PA. I help design interconnections and electrical connectors for aerospace applications.
  12. jobeth

    geometric tolerancing exam

    I am interested in studying for the geometric tolerancing exam per Y14.5 M. Is there any recommended sites or study guides? Thank you in advance. Bill B. William H. Bernhart, P.E. I work as a development engineer for AMP - Tyco Electronics located near Harrisburg, PA. I help design...
  13. jobeth

    We are machining an aluminum connector shell out of 6061. The geometry

    Thank you....... William H. Bernhart, P.E. I work as a development engineer for AMP - Tyco Electronics located near Harrisburg, PA. I help design interconnections and electrical connectors for aerospace applications.
  14. jobeth

    Silicone Rubber Question: I know

    Silicone Rubber Question: I know this is an awkard question but, I got asked it from an aerospace customer about how silicone rubber wire seals react to what is called urich acid. In other words, how does silicone rubber react to urine? It seems some of thier connectors had voltage failures...
  15. jobeth

    Hand Strength What are the typic

    Hand Strength What are the typical loads that the human hand can push on a knob or rocker swtich? William H. Bernhart, P.E. I work as a development engineer for AMP - Tyco Electronics located near Harrisburg, PA. I help design interconnections and electrical connectors for aerospace...
  16. jobeth

    Is there anything out there to read

    Thank You!!!!!! William H. Bernhart, P.E. I work as a development engineer for AMP - Tyco Electronics located near Harrisburg, PA. I help design interconnections and electrical connectors for aerospace applications.
  17. jobeth

    Is there anything out there to read

    Is there anything out there to read up on current carrying capacity of wires and contacts? General calculation techniques, etc. Thank you in advance. Bill B. William H. Bernhart, P.E. I work as a development engineer for AMP - Tyco Electronics located near Harrisburg, PA. I help design...
  18. jobeth

    Aircraft Systems Websites

    Thank you all!!!!!!!! William H. Bernhart, P.E. I work as a development engineer for AMP - Tyco Electronics located near Harrisburg, PA. I help design interconnections and electrical connectors for aerospace applications.
  19. jobeth

    PWB Trace Thicknesses

    Thank you! William H. Bernhart, P.E. I work as a development engineer for AMP - Tyco Electronics located near Harrisburg, PA. I help design interconnections and electrical connectors for aerospace applications.
  20. jobeth

    PWB Trace Thicknesses

    In looking at PCB / PWB copper trace thicknesses, it seems people talk in terms of 1/2 oz, 1 oz, 2 oz, and 3 oz thick copper. What does that convert to in inches or mm? Thank you in advance for any information. Bill B. William H. Bernhart, P.E. I work as a development engineer for AMP -...

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