On Sat, 26 Feb 2011 20:38 -0500, "Sean Breheny" wrote:
> I was recently looking inside a late 1990s LeCroy scope and was
> impressed by the quality of construction. One thing really surprised
> me, though: all of the thru-hole electrolytic capacitors (radial type)
> were mounted about 1/8th inch above the PCB surface, rather than flush
> with the PCB. They were also bent over at random angles and not
> secured with any glue or RTV cement. It did not seem to be due to
> sloppy assembly because the size of the gap between the bottom of the
> caps and the PCB surface was quite consistent. Any ideas on why it
> would have been assembled this way? Even more importantly, any ideas
> on why  they did this without adding some type of material to secure
> the caps against vibration?

I guess for the same reason that it's not water-resistant. The lab
environment is pretty tame and vibration is not an issue.

Just my two cents, I have no idea why they spaced the caps from the
boards.

Friendly regards,

Bob

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