Many years ago I worked in the aircraft industry and the company had a lot of
NASA contracts.
Everyone
that was going to do any soldering on items that would be traveling on
any space craft was required to go through a 40 hour soldering course.
One
of the explanations given to us was the solder joint had to have the
exact amount solder for a perfect connection. Not too little for quality
of the joint.
But the main thing was not too much solder on any
joint. The purpose of this was simply weight. If you had too much solder
on every connection then the weight would be enormous.
Each
component had to have the leads trimmed with flush cut pliers. In those
days that meant flat cutting toe nail clippers. Each joint had to have a
slightly curved concave aspect to it. And of course it had to have a
shine to it.
In later years I worked in the oil
industry where all downhole equipment had to be soldered with "high
temp" solder. It had silver in it and a higher melting point and getting
that solder joint to shine was nigh on to impossible.
73, Tom K5IID
"Socialism is a philosophy of failure,
the creed of ignorance, and the gospel of envy,
its inherent virtue is the equal sharing of misery.."
-- Winston Churchill
"Democracy depends on well-informed voters; absent that, it is all mud flowing
down hill."
--Charles Harpole
"Luck is a dividend of sweat. The more you sweat, the luckier you get."
If you don't like my signature? Too Bad! But I will use it because it is what I
believe.
K5IID Tom Horton Hillsboro, TX
E sorter for ARRL W5 bureau
Same call for 55 years!
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