Magnetron testing

Discussion in 'Electronic Repair' started by Blu3b3rrY, Aug 12, 2004.

  1. Blu3b3rrY

    Blu3b3rrY Guest

    Did magnetrons can be tested by simple ways? for example, using a
    Digital Multimeter
    How do I know if a magnetron is still good or defective?
    Is there an average measure o test between the magnetron's terminals
    That could be indicative of a failure?
     
    Blu3b3rrY, Aug 12, 2004
    #1
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  2. (Blu3b3rrY) writes:

    > Did magnetrons can be tested by simple ways? for example, using a
    > Digital Multimeter
    > How do I know if a magnetron is still good or defective?
    > Is there an average measure o test between the magnetron's terminals
    > That could be indicative of a failure?


    See the microwave oven repair guide at:

    http://repairfaq.ece.drexel.edu/REPAIR/

    --- 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

    Note: These links are hopefully temporary until we can sort out the excessive
    traffic on Repairfaq.org.

    Important: Anything sent to the email address in the message header is ignored.
    To contact me, please use the feedback form on the S.E.R FAQ Web sites.
     
    Sam Goldwasser, Aug 12, 2004
    #2
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  3. Blu3b3rrY

    Ken G. Guest

    Its hard to tell on these new invertor ovens ..The tube can test totaly
    normal on an ohm meter but not work in the oven .
     
    Ken G., Aug 13, 2004
    #3
  4. (Ken G.) writes:

    > Its hard to tell on these new invertor ovens ..The tube can test totaly
    > normal on an ohm meter but not work in the oven .


    Invertor power supply or not, this is true. Test the filament, test for
    shorts, closely examine for physical problems like cracked magnets.
    Beyond that, ruling out other causes and then going for a replacement
    is about the only safe option.

    --- 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

    Note: These links are hopefully temporary until we can sort out the excessive
    traffic on Repairfaq.org.

    Important: Anything sent to the email address in the message header is ignored.
    To contact me, please use the feedback form on the S.E.R FAQ Web sites.
     
    Sam Goldwasser, Aug 13, 2004
    #4
  5. Blu3b3rrY

    Art Guest

    Agreed, either it will or will not function. Open filament or shorts to the
    case tend to be common failures, cracked or broken magnets due to
    overheating or mechanical stress. Continuity check across the filaments for
    low reading and from filament leads to case for open.
    "Sam Goldwasser" <> wrote in message
    news:...
    > (Ken G.) writes:
    >
    > > Its hard to tell on these new invertor ovens ..The tube can test totaly
    > > normal on an ohm meter but not work in the oven .

    >
    > Invertor power supply or not, this is true. Test the filament, test for
    > shorts, closely examine for physical problems like cracked magnets.
    > Beyond that, ruling out other causes and then going for a replacement
    > is about the only safe option.
    >
    > --- 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
    >
    > Note: These links are hopefully temporary until we can sort out the

    excessive
    > traffic on Repairfaq.org.
    >
    > Important: Anything sent to the email address in the message header is

    ignored.
    > To contact me, please use the feedback form on the S.E.R FAQ Web sites.
    >
    >
     
    Art, Aug 13, 2004
    #5
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