Breaking News
Comments
Newest First | Oldest First | Threaded View
<<   <   Page 4 / 6   >   >>
Max The Magnificent
User Rank
Blogger
Re: How would you judge?
Max The Magnificent   11/27/2013 12:27:04 PM
NO RATINGS
@Antedeluvian: ... I have no illusions about winning!

That's good to hear, because I plan on entering also :-)

Max The Magnificent
User Rank
Blogger
Re: How would you judge?
Max The Magnificent   11/27/2013 12:26:02 PM
NO RATINGS
@Antedelivian: How would you judge the solder joins? neatness, connectivity, symmetry, strength, "blobiness"?

Well, this is something we would have to decide beforehand.

Max The Magnificent
User Rank
Blogger
Re: Getting nasty
Max The Magnificent   11/27/2013 12:24:37 PM
NO RATINGS
@Antedeluvian: If you want to separate the wheat from the chaff, try getting them to solder magnet wire.

Ooohhhhhh, you are a cruel man!

 

Max The Magnificent
User Rank
Blogger
Re: Soldering challange
Max The Magnificent   11/27/2013 12:23:41 PM
NO RATINGS
@SteveDS: To make it really interesting you need to dead bug a chip on the board with blue wires!


Good idea -- if we do go ahead with this, maybe we should form a group to come up with a special competition board and associated tasks.

Crusty1
User Rank
CEO
Re: I remember it well
Crusty1   11/27/2013 6:55:44 AM
NO RATINGS
@David: I think my first head of department at London Underground Research Labs showed me how to do it and it mainly concerned getting the oxide coat off with fairly normal lab reagents, and then quickly soldering.

@Max; While thinking about a soldering competetion you could make life interesting by getting the contestants to measure the resistance using a slide wire potentiometer and Weston Cell. How many have used similar old kit?

I used, once, a Cambridge optical pyrometer at college, but I have never seen another one to put my hands on.

 

David Ashton
User Rank
Blogger
Re: I remember it well
David Ashton   11/27/2013 4:50:42 AM
NO RATINGS
@Crusty....Manganin.... can't help you there....nor can google, much.... some suggestions on iron temperature and usng a special flux?

Crusty1
User Rank
CEO
Re: I remember it well
Crusty1   11/27/2013 4:35:03 AM
NO RATINGS
@David: Oh how I had forgotton those horrible tinsel wires. All my headphones were government surplus from a shop called Job Stocks.

Manganin resistance wire needed a trick which I seem to have forgotten?

David Ashton
User Rank
Blogger
Re: I remember it well
David Ashton   11/27/2013 4:17:50 AM
NO RATINGS
@Crusty....working on military radios I had similar problems with the "Tinsel" wires used in handset and microphone curly cords.  The trick was to get a strand out of multistranded wire, and use it to bind up the tinsel cores.  You could do a very neat job with practice.

David Ashton
User Rank
Blogger
Re: How would you judge?
David Ashton   11/27/2013 4:14:29 AM
NO RATINGS
@Max - I reckon Duane would be a good judge for your competition?

Crusty1
User Rank
CEO
Re: I remember it well
Crusty1   11/27/2013 3:52:35 AM
NO RATINGS
Soldering with the 300 watt had soldering iron was a real pain at 10 years old the Iron was so heavy to hold.

Multi strand Litz wire tails from a tuning coil were the killer of dry joints for me, until dad showed me the trick of soldering it. Dip the cotton and shelac coated wires in alcohol, set light to the end and wait for a lovely bright glob of copper to form and then blow the flame out and then solder. Oh what lovely mini fires I had with this.

It seems to me basic soldering skills are something that needs to be taught on the bench, preferably in a flame proof room.

<<   <   Page 4 / 6   >   >>


Flash Poll
EE Life
Frankenstein's Fix, Teardowns, Sideshows, Design Contests, Reader Content & More
Max Maxfield

MSGEQ7-Based DIY Audio Spectrum Analyzer: Testing
Max Maxfield
12 comments
In my previous column on this topic, we discussed the step-by-step construction of the first pass at a MSGEQ7-based DIY audio spectrum analyzer for use in my BADASS Display project. Of ...

Karen Field

June 2014 Cartoon Caption Winner
Karen Field
13 comments
Congratulations to "Wnderer" for submitting the winning caption for our June cartoon, after much heated conversation by our judges, given the plethora of great entries.

Jeremy Cook

Inspection Rejection: Why More Is Less in a Vision System
Jeremy Cook
3 comments
Albert Einstein has been quoted as saying, "Everything should be as simple as possible, but not simpler." I would never claim to have his level of insight -- or such an awesome head of ...

Jeremy Cook

Machine Fixes That Made Me Go 'DUH!'
Jeremy Cook
21 comments
As you can see in my bio at the end of this article, I work as a manufacturing engineer. One of my favorite things that happens on a Friday late in the afternoon is to hear my phone ring ...

Top Comments of the Week
Like Us on Facebook
EE Times on Twitter
EE Times Twitter Feed

Datasheets.com Parts Search

185 million searchable parts
(please enter a part number or hit search to begin)