DV Info Net - Soldering & Cable Making

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Soldering & Cable Making

Over recent times on forums and the young Audio Assistants I work with on TV Outside Broadcasts its becoming evident that people have not learnt the "art" of soldering. Now not directly and audio skill knowing how to solder and fault find basic cables is of GREAT benefit.
Knowing and having the ability to fault find and make your own cables will save you many $$$ over the years.

Quote:

Originally Posted by Brian P. Reynolds (Post 1614127)

True ... is there a question there somewhere?

I thought that this was a "discussion" forum......and not just for questions that require answers?

I agree with Brian. When I first got started working with audio, I'm not sure if it was even possible to buy a pre-made XLR cable, for example. Sure, we could have bought one from the local sound shop, but they would have had it made in-house by one of their bench techs. We cut our teeth making XLR cables, wiring patch panels, and the like.

Back then, everything was done by hardware. If you wanted to add compression to a signal, you patched in (or hard wired in) a compressor, which was several rack units high.

Nowadays we're in the age of software. All the functions of old, plus many that we never even dreamed of, are done by software, usually not even inside a dedicated "box" but rather on a PC. So the tyros coming up today don't learn to solder, they merely learn how to use the mouse and keyboard. If they want an XLR cable, they just mail-order one that ultimately was assembled by third-world monkeys. And it's likely that a 25-foot XLR cable today costs less than a locally-built one did 50 years ago!

Parenthetically, we have this same issue in the amateur radio community. 50 years (or more) ago, "hams" bought blank metal chassis, drilled and punched their own holes, mounted their own transformers and tube sockets, hand-wound their own wire coils on phenolic coil forms, and hand-wired their own resistors and capacitors. They built the gear (often after designing it themselves), understood it, and knew how to use it. Nowadays, most hams buy a ready-built transceiver (sometimes for $10k or $15k) and struggle to learn all the functions which are implemented in software. In fact some ham radios are merely boxes with no knobs or dials, which are operated entirely by USB control from a PC.

Fifty years ago, the electronics course in the local high school taught skills such as soldering, and explained how to check a cable with an ohmmeter. Today every student has a PC workstation sitting on the old workbench, and learns the theory of electronics in progressive lesson modules, but doesn't learn how to use hand tools. This is "progress."

The world today is wonderful, with powerful software to perform unimaginable tasks... until a cable breaks, bringing everything to a halt because the "audio pro" or radio operator doesn't know how to cope with this huge crisis. A few years ago I was doing some contract work at a well-known museum in upstate New York. While I was there, the "director of multi-media" asked me to help trouble-shoot a problem, because he did not know how to ascertain (using a DMM) whether or not the wall outlet powering a projector was "live" or not! I had to explain to him that he should use the "200 VAC" range on the meter, and not to plug the meter lead into the "20 Amp" jack on the meter. It's a sad world today.

In the ham radio community, we often hold workshops just to teach simple skills, like soldering, to new members. But, then again, a lot of "hams" get together because they want to learn, and there is a great deal of cameraderie in the "ham" community to encourage them. As more and more people are running solo "recording studios" using only the PC in their basement, rather than working in bigger, real, studios, where an informal "apprenticeship" structure exists, I don't know of a context parallel to the ham radio world, where new sound men can learn the basics.

I think there's a good opportunity for local technical/vocational schools. But many of the "basement studio engineers" I've encountered come from a musical background, rather than technical, and look down their nose at the need for technical knowledge. As long as they consider themselves as "artistes" there is little hope that they'll ever learn to solder, or understand how to build a 20dB pad to solve an emergency.

Those who truly do want to learn will take the initiative to find a way. The books are there; the schools are there. The people with none of these basic skills will go on to become "director of something" hired by upper management who knows even less than they do.

A Scottish solder (sorry bad pun)

I learned to solder my own cables in my teens - mostly 1/4 and 1/8 jacks, 5 pin DINs and RCA phonos. Back then it wasn't so easy (or cheap) to get to range of ready made cables we have now.

However, as my hands get less steady and my eyesight less acute, I must admit that I have bought a few myself recently. Of course, there are some quite fiddly connectors which have been developed since the 60s which do not end themselves easily to home assembly - I'm thinking of S-video, Firewire and some of the other computer cables. Long live XLR and standard jacks!

only TA-5's are a PITA to work on. after that not such a big deal. I've wired a few 96input bantom patch bays too, punch down ends to XLR / TRS / RCA's on the other end

When I was in college 30+ years ago studying electrical engineering, I had to go see the advisor of the schools ham radio club for a signature. While we were talking, he tossed me a perf board and commented, "We need to teach grad students how to solder." On the back side were lumps of cold solder joints of various sizes and shapes at the intersection of component leads and buss wires.

That's no surprise.

Back in the early '80s I was taking some graduate EE courses, and the class was broken up into teams to design and build final projects. One of the guys on our team didn't know how to strip 24ga wire to make jumpers for the "proto-board" breadboarding system. I actually had to show him how to use a wire stripper! And this was a grad student who with a double major: EE and nuclear engineering. After graduation he was going back to his home country to work on nuclear reactors! It's lucky that country hasn't been blown off the map.

The BS and graduate level EE courses teach everything in terms of "black boxes" and calculus, with no practical experience whatsoever. Only at the Associate degree level is there any chance of any hands-on learning.

Quote:

Originally Posted by Greg Miller (Post 1614689)

...The BS and graduate level EE courses teach everything in terms of "black boxes" and calculus, with no practical experience whatsoever. Only at the Associate degree level is there any chance of any hands-on learning.

That's very interesting - I'd have to largely agree.

However, although I teach (very part-time) in a community college "professional and technical" program, I didn't go to one, myself.

Learned to solder from my dad, who proceeded to buy me a series of Heathkit projects (these were parts kits with very good instructions to build all sorts of small and not-so-small devices). Lotsa' fun. Great products, those Heathkits.

In reviewing my experiences, consideration of community college or junior college never entered into my choices. But, when I got to university, there was no hands-on (in Communication). Instead, I got on-the-job training at a public television station to develop my skills. OJT was, I think, more common then.

Most of the CC students I see today are paying their own way, many with student loans. These students know the value of higher education better than most - they're paying for it! For those in our Multimedia program, it's a technical education that's most accessible.

We teach software, camera, lighting, sound. Soldering doesn't come into it... Students find that in the electronics technician programs. More's the pity, but, we have a *very* full curriculum for our certificate programs.

Re: Brian and "Discussion" forum

So, Brian .....

Quote:

Originally Posted by Brian P. Reynolds (Post 1614143)

I thought that this was a "discussion" forum......and not just for questions that require answers?

..... why would you want discussions?

;-)