Unusual Tools Help On The Bench
[June 2021] For most of us, having one of every tool is probably not economically or spatially feasible. On the other hand, having a knowledge of various tools that can be adapted will come in handy.
From time to time, I find some gadget which is used in some other industry unrelated to electronics that is useful in solving a problem in our business.
In this case it was a small magnifier that my son used when he was going to a photography school.
These are used for close-up inspection of negatives, film, photographs, etc. and are especially useful due to the clear base which allows ambient light to illuminate the object in question.
I now keep this little magnifier on the bench right next to the soldering station.
Putting It To Good Use
One time, I had an audio distribution amplifier on the bench that showed intermittent levels on one channel.
After opening it up to see what was the problem. I looked over the circuit board, but did not see anything that was obviously wrong.
So, I grabbed the magnifier to take a closer look.
Sure enough, there was a cold solder joint was ever so slightly cracked around the pin itself.
I could not see it with the naked eye but, with the aid of the little magnifier, as I looked more closely the crack in the solder joint was easy to see.
I now clearly had found the problem.
A quick cleanup with some wick and resoldering solved that problem.
A Different Tool Worth a Look
Another occasionally useful item that is not generally in the typical engineer’s toolbox is a .22 caliber bore brush.
a .22 Bore Brush
I used this one to clean out some honeycomb RFI filters in the input of a transmitter cooling blower’s air intake a while back. As I recall it helped drop the exhaust temperature substantially.
Generally they are only an inch or two in length, and about $3 to $10, but some day you, too, might find this a useful tool to have on your bench.
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Dave Dunsmoor retired after 35 years as an FAA technician and radio engineer in Minot, ND. He keeps busy hiking and still doing a bit of contract engineering.
Contact Dave at:firstname.lastname@example.org
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