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Dave Plowman (News) Dave Plowman (News) is offline
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Default Fifty year-old Sanyo transistor radio still works perfectly - should I be surprised?

In article ,
Michael A. Terrell wrote:

"Dave Plowman (News)" wrote:

Jeff Liebermann wrote:

Dry joints? I've never had to lubricate my solder connections.


It's what describes a failed solder joint as well as anything - they
can look sort of dried out.


That is called a 'cold solder joint' in the US, because it is
typically caused by too low of a soldering temperature to make a good
joint.


Don't you talk about 'wetting' when solder flows? Turns from a solid to a
liquid? But whatever - either description works for me.

FWIW I'm not sure all failed joints are caused by too low a temp - you see
them on factory soldered boards too. Famously like round a LOPT - where
the vibration and heat causes the problem.

--
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