Tin whiskers: My Fisher may need a shave

Discussion in 'Fisher' started by monkboughtlunch, May 11, 2017.

  1. monkboughtlunch

    monkboughtlunch Super Member

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    Took some pics of the internals of an 800B. Are these strands which appear to grow outward the infamous "tin whiskers?" If so, how can they be expunged or prevented?

    tinwhiskers.jpg
     
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  2. petehall347

    petehall347 the brandy coffee man Subscriber

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    i have recently heard there are ways of cleaning that fixes this issue . i only skimmed through it .
     
  3. KingBubba

    KingBubba "Too Much Stuff"

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    Man, that is a classic shot. At the least, I think you should reflow all your old solder joints. I do know that the whiskers do not just happen overnight. Good luck.
     
  4. sKiZo

    sKiZo Hates received: 8641 Subscriber

    Sure that's tin? Seems to me the whiskers thing is associated with the newer eutectic blends of solder, and that unit's way too old for it to be a problem, unless it's been worked on since the build.
     
  5. larryderouin

    larryderouin Turn it UP, POP? PLLUUEEEZZZZZEE Subscriber

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    I've seen whisker's on OLD transistors before but nothing like this. Remove old and Re-flow all your solder joint
     
  6. Tom B

    Tom B AK Subscriber Subscriber

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    My thoughts are that tin whisker situation only occurs when the metal is pure tin or zinc, not an allow as with tin/lead. Could this be cobwebs, or something else? Are they conductive?
     

     

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  7. Rockyhill

    Rockyhill No marigolds in the promised land Subscriber

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    Any sign of rodent droppings? :eek:
     
  8. monkboughtlunch

    monkboughtlunch Super Member

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    I only saw this at high magnification in photos. When I opened up the unit again to look closer, it appears it was just part of a wire sheath that was frayed.
     
  9. sKiZo

    sKiZo Hates received: 8641 Subscriber

    Whiskers? Did somebody say whiskers?

    [​IMG]
     
  10. larryderouin

    larryderouin Turn it UP, POP? PLLUUEEEZZZZZEE Subscriber

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    Skizo! You are one sick MUTT!:eek::biggrin: ROFLMAO!!

    Monk in any event clean them up. They looks like schiess. especially after skizo's "ART"???
     
  11. sKiZo

    sKiZo Hates received: 8641 Subscriber

    We should have a poll to see if anyone else saw that, or if I need to cut back on the drugs ... <G>
     
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  12. petehall347

    petehall347 the brandy coffee man Subscriber

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    cut back on the drugs man ,,i know nothing
     
  13. audiodon

    audiodon AK Subscriber Subscriber

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    Hilarious
     
  14. Rockyhill

    Rockyhill No marigolds in the promised land Subscriber

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    F2B87D97-0629-4464-896D-C9F49B4E0F23-826-000000887F7F25F9.jpeg
     
  15. monkboughtlunch

    monkboughtlunch Super Member

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  16. sKiZo

    sKiZo Hates received: 8641 Subscriber

    My favorite tree in the front yard ...

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    Er ... what was the topic? <G>
     

     

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  17. larryderouin

    larryderouin Turn it UP, POP? PLLUUEEEZZZZZEE Subscriber

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    I think you've been praying for a visit from the little Green Men in Starched White overcoats again.
     
  18. sKiZo

    sKiZo Hates received: 8641 Subscriber

    They're welcome to stop over ... just warn them not to piss off the tree, eh ... I can't be held responsible for what happens then.
     
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  19. monkboughtlunch

    monkboughtlunch Super Member

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