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Old 26th February 2010, 05:28 AM   #1
m6tt is offline m6tt  United States
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Default Interesting wiring guide find, thanks NASA!

I found this in a wikipedia source link, thought it might be of some use for us electronics hobbyists (and professionals!). Good for newbies too that want to avoid crackly connections or other issues. If it works for rockets, it's probably good enough for me!

Inspectors

Enjoy!
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Old 26th February 2010, 06:16 AM   #2
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Quote:
Originally Posted by m6tt View Post
I found this in a wikipedia source link, thought it might be of some use for us electronics hobbyists (and professionals!). Good for newbies too that want to avoid crackly connections or other issues. If it works for rockets, it's probably good enough for me!

Inspectors

Enjoy!
Good one! Thanks,

jd
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Old 26th February 2010, 07:06 AM   #3
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That should prove useful, thanx.

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Old 26th February 2010, 11:21 AM   #4
Ian444 is offline Ian444  Australia
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Interesting link, I see they remove the gold plating from gold plated component leads before soldering into a PCB, must be to improve the reliability of the solder joint.

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Old 26th February 2010, 01:27 PM   #5
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I see they remove the gold plating from gold plated component leads before soldering into a PCB
Here's how it was explained to me:

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the gold on the pins should be scraped off (!) and then the pins be tinned with solder, prior to soldering to the PCB. This is pretty important, otherwise embrittlement will occur over time (ie crappy socket connection - the opposite of what you want!).
The gold will give you the corrosion free sockets you want, as Dave says, but if you don't prep them right, you'll get a <worse> connection than the plain sockets. :evil:

To clarify myself, where the gold meets the tube pins, is very good. But where the socket meets the PCB, it must be scaped & tinned as stated above.
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Old 26th February 2010, 01:38 PM   #6
Glowbug is offline Glowbug  United States
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Sweet!

Adding it to the collection

Quote:
If it works for rockets, it's probably good enough for me!
Well, remember when they lost that space probe a couple years ago because someone mixed up metric and standard?
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Old 26th February 2010, 02:55 PM   #7
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Well, remember when they lost that space probe a couple years ago because someone mixed up metric and standard?
Metric is standard, you are the ones who are lagging.
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Old 26th February 2010, 03:30 PM   #8
KDAXE is offline KDAXE  United States
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Default Re: Interesting wiring guide find, thanks NASA!

Excellent resource! Worth having a broad variety of termination options in your toolkit. I've also found NASA videos on topics like soldering to be a good resource.

Thanks,

Ken
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Old 26th February 2010, 03:34 PM   #9
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I worked with a guy who was a NASA certified solderer. I watched him replace a processor chip that had maybe 50 to 100 legs. After he was done you could not see any signs of the chip replacement.
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Old 26th February 2010, 03:57 PM   #10
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You should watch this guy solder. He makes it look easy. That 603 is about as big as a gnat's turd.

Curious Inventor - Guides : Surface Mount Soldering
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