how to fix large film caps on the board Vibration - diyAudio
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Old 7th October 2009, 10:08 PM   #1
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Default how to fix large film caps on the board Vibration

Hi everybody,

I am wondering if anybody have experimented a functional way to fix large, rounded caps on the board to prevent parassitic vibrations.
Maybe glue them? If so, what would the solution to use?

Many thanks
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Old 7th October 2009, 10:28 PM   #2
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Hot melt glue is commonly used.
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Old 7th October 2009, 10:34 PM   #3
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If you look inside most all RF circuit boards you will see Hot glue beads everywhere...The most common way of damping vibrations on a cap in a board. Note that ANY variation (microphonics) of a capacitor will foul up RF tuning, hence the glue.
Of course hot glue will make for component removal very difficult....myself I would opt for Silicone,,,I would think the vibration absorption properties would be superior. M2C

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Old 7th October 2009, 10:39 PM   #4
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What's wrong with a nylon capacitor mounting clamp or a couple of holes and a tie wrap?
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Old 8th October 2009, 10:58 AM   #5
wwenze is offline wwenze  Singapore
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That explains the gunk which when I was more innocent thought the capcitors had exploded. Nice info.
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Old 8th October 2009, 11:46 AM   #6
marce is offline marce  United Kingdom
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Silicon is often used, and tie wraps, we do MIL std and only use tie wraps.
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