Tips on wall-wart power supplies and leftover 6' cords


      Subscribe in NewsGator Online   Subscribe in Bloglines

Wart remover

The wall-wart power supply is a common problem. These are more common than ever because manufacturers don't have to obtain registrations for the power supply in a device, and they can buy the supplies in bulk. Both steps save money. Unfortunately, unless the outlet strip outlets are spaced far apart, one wart will cover at least two or three outlets. One solution is to use very short extension cords. These cords are marketed for this use and are about 6” long. They are available through electronics suppliers and many consumer electronics stores and home improvement centers.

Some power strips will turn the outlets 90 degrees so the warts sit side-by-side. This can also preserve some of the potentially wasted space. Even so, another problem can arise. The weight of the warts can pull themselves out of the strips. Furman has a solution to this with its Pluglock. Brackets on the power strip hold the wart firmly in place.


The spaghetti alternative

Did you ever notice that when you get a new piece of equipment, it always comes with a 6' long IEC power cord? And when you mount it in the rack, the outlet strip is right at the back of the chassis, you have at least 3' and maybe even 6' too many? It turns into an unsightly mess. There is a solution.

Short IEC power cords are available. I have purchased 2' and 3' IEC cords as needed (Volex 17041A-B1-10 and 17000A-B1-10), especially in a crowded rack. Lengths as short as 1' are available. Most electronic suppliers, such as Newark and Mouser carry them. Other manufacturers make them as well, and variations such as right-angle ends are also helpful.

But what do you do with the leftover 6' cords? Snip off the IEC end and make them extension cords. Or snip off both ends and make them speaker cords. If you really have the time available, cut the cord to the proper length and install your own power plug for about the same cost.


Send a tip, win a book

Tech Tips has been running for several months now, and we appreciate the ideas that have already been submitted. Some have been used in this column, while others have been posted to the Engineer's Notebook section of the Radio magazine website (radiomagonline.com/notebook). We want to hear your ideas, and we have something to offer you as well. Ideas submitted for Tech Tips or the Engineer's Notebook now through April 30 will be entered into a drawing to receive a copy of the Pocket Ref by Thomas J. Glover. This handy book is loaded with useful data and formulas for just about anything you can image. Send your ideas to radio@RadioMagOnline.com


Landry is an audio maintenance engineer at CBS Radio/Westwood One, New York.


Do you have a tech tip?Send it to us at radio@RadioMagOnline.com



Commenting terms of use blog comments powered by Disqus

Webinars

Critical Aspects of Tower Site Safety

Learn the steps you can take to ensure a safe working environment at a tower site.

33 1/3 Things You Forgot

Think wire is just wire? Think again.

Podcast Archives

Radio Currents Podcast, Nov 24

FCC Commissioner Jonathan Adelstein seeks a PPM investigation, Nielsen steps into radio ratings with Cumulus, The NABEF seeks entires for the Celebration of Service to America Awards, Nautel opens a parts depot in Memphis, and Volvo makes HD Radio standard on nearly all models in 2009.

Radio Currents Podcast, Nov 17

Changes are expected in Washington when Obama takes office, Emmis Interactive signs several stations to its interactive platform and sales consulting services, MySimBook hires hired Doug Raines as vice president business development, and captioned HD Radio passes its test on election night.

Forum

The Radio magazine Forum

Pose a question, discuss an idea. This is your forum.

Blog

Talkback: The Radio Blog

Talkback, the Radio magazine blog, is your chance to post and comment on technical issues in radio.

Projects in Progress

Projects in Progress tracks facility installation projects from start to finish. Follow the progress of the WUVT-FM transmitter site upgrade.

Today in Radio History

Milestones From Radio's Past

The history of radio broadcasting extends beyond the work of a few famous inventors.

magazine cover image

Current Issue

Data Lifesaver

Without a doubt, we rely on data in virtually every facet of business and even in our personal lives.

Browse Back Issues