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Any parts of a LASERJET 5Si that can be salvaged?

Discussion in 'Electronic Repair' started by Ignoramus26555, Jun 23, 2005.

  1. NSM

    NSM Guest

    And I'm mighty cautious of microwave ovens.

    N
     
  2. Angrie.Woman

    Angrie.Woman Guest

    I have a question. If I put a cellphone in a microwave oven, close the
    door, call the number....should it ring?

    A
     
  3. BrotherBart

    BrotherBart Guest

    I have a question. If I put a cellphone in a microwave oven, close the
    Why is it that I feel the need to ask "Did it?"?
     
  4. NSM

    NSM Guest

    If it does I'd fix it or toss it.

    N
     
  5. Angrie.Woman

    Angrie.Woman Guest

    Yes...the last "real" job I had was for a telecommunications services
    provider. They installed and maintained towers, as well as the cellular,
    and microwave equipment, associated with all of it.

    The guys used to do that to prove that the ovens weren't really all that
    well insulated, but I always wondered if there was another reason that
    might happen.
    A
     
  6. Gunner

    Gunner Guest

    Been there..done that..still remember the spasms.. but I wasn't
    stupid enough to use my tounge.

    Fingers were quite enough.

    Gunner

    "Considering the events of recent years,
    the world has a long way to go to regain
    its credibility and reputation with the US."
    unknown
     
  7. Joseph Gwinn

    Joseph Gwinn Guest

    The shielding is not required to be perfect, cutting the ~600 watts RF
    internal leftover-heating power to something like a milliwatt of leakage
    per centimeter of door seal (I don't recall the exact number, but it
    will be *somewhere* on the FCC website), which would be something like
    100 milliwatts total leakage for a small door. The intent is only to
    reduce the leakage to safe power levels; there will always be some
    leakage.

    Also, the seals on a microwave oven are only required to work at 2,450
    MHz, while cellphones are more like 900 MHz, and some very good kinds of
    door seals (choke seals) are tuned to a specific frequency, and so would
    fail miserably at 1/3 the design frequency.

    So, if you are close to a cellphone base station, one can imagine that
    the phone inside the microwave could still hear the call and ring.

    Joe Gwinn
     
  8. Because, as we all know, some parts of automotive carburetors run on
    magic. And like the smoke sealed up inside working electronic components,
    you really don't want to let it escape. :)

    --- sam | Sci.Electronics.Repair FAQ Mirror: http://repairfaq.ece.drexel.edu/
    Repair | Main Table of Contents: http://repairfaq.ece.drexel.edu/REPAIR/
    +Lasers | Sam's Laser FAQ: http://repairfaq.ece.drexel.edu/sam/lasersam.htm
    | Mirror Sites: http://repairfaq.ece.drexel.edu/REPAIR/F_mirror.html

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    Important: Anything sent to the email address in the message header above is
    ignored unless my full name is included in the subject line. Or, you can
    contact me via the Feedback Form in the FAQs.
     
  9. Depends on the Poodle.


    --
    Many thanks,

    Don Lancaster
    Synergetics 3860 West First Street Box 809 Thatcher, AZ 85552
    voice: (928)428-4073 email:

    Please visit my GURU's LAIR web site at http://www.tinaja.com
     
  10. NSM

    NSM Guest

    Thinking about that, the front has a pierced panel that blocks radiation at
    around 2.5 gigahertz, however the cell phone runs at around 800 MHz so it's
    possible enough of that frequency will leak through to make it work.

    N
     
  11. James Sweet

    James Sweet Guest

    A CRT that's not connected to the HV lead won't have any path to ground to
    bleed the charge off, it'll pick up static from the air over time.
     
  12. Angrie.Woman

    Angrie.Woman Guest

    Cool - thanks for the explanation!

    A
     
  13. Tom Miller

    Tom Miller Guest

    That concept has been checked out by "Mythbusters" and found to be
    essentially a myth.
    Never the less I would check the direction before pointing.
     
  14. I suspected so. I imagine that if you peed from a height of more than a
    few feet, the stream of urine would break up into droplets and would not
    form the necessary conductive path. Still, I wouldn't want to try it
    with 25 kV.

    Chris
     
  15. I suspected so. I imagine that if you peed from a height of more than a
    few feet, the stream of urine would break up into droplets and would not
    form the necessary conductive path. Still, I wouldn't want to try it
    with 25 kV.

    Chris
     
  16. James Sweet

    James Sweet Guest


    Yeah on that chance that a solid stream did connect, pee is a pretty good
    conductor of electricity, I know people who've accidently peed on electric
    fences and I do know for a fact that it'll bite you.
     
  17. NSM

    NSM Guest

    In New Zealand they have interisland undersea lines which run at 500 KV DC
    IIRC and they wash the salt off the insulators with a 'chopped' spray jet of
    water. Scary job IMO.

    N
     
  18. Thanks for the reply.

    I had heard that it meant "frog in forest", or words to that
    effect. The "forest" part makes sense, but maybe not the "frog" part.

    Duck trapping wouldn't be such a bad profession, I guess. Sounds
    better than "nightsoil collectors".
     
  19. Gunner

    Gunner Guest

    Electric fence...been there..done that..still tend to curl into the
    fetal position at the memory..

    Gunner

    "Considering the events of recent years,
    the world has a long way to go to regain
    its credibility and reputation with the US."
    unknown
     
  20. Guest

    Well, both ducks and frogs say 'quack', (kwak in dutch) so it could be
    true.
    ;-)
     
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