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RadioShack® Snap-Together Ferrite Choke Core

Model:

Snap-together ferrite Choke Core

 | Catalog #: 273-105
Price:
$5.99
$5.99
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Availability:

ONLINE In stock
Usually ships in 1 - 2 business days
IN STORE
Available at most stores, find it near you


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Product Summary

Effective, easy-to-use RFI fighter.

Cut down on RFI (radio frequency interference) with this snap-together Ferrite Choke Core. Simply snap it over any coax cable, AC or audio cord.

  • Easy to use RF interference fighter
  • Just snap over cable or cord
  • Works with AC or audio cord

You'll also need

  • cabling
Pricing and availability: Please note that all prices are subject to change without prior notice. Prices advertised on this site are for online orders only. Prices on some items may differ from those advertised in RadioShack stores. All merchandise may not be available at all stores, and all stores may not participate in all sales promotions. We recommend you contact the store to confirm product availability and price.

What's in the box

  • Snap-on choke core
 

Shipping

Usually ships in 1 - 2 business days

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Other ways to get it


In store: Check availability
By phone: 1-800-843-7422

Manufacturer Warranty

  • Parts: 90 days
  • Labor: 90 days
Tech Specs

Customer Reviews

REVIEW SNAPSHOT®

by PowerReviews
RadioShack® Snap-Together Ferrite Choke Core
 
3.7

(based on 30 reviews)

Ratings Distribution

  • 5 Stars

     

    (14)

  • 4 Stars

     

    (8)

  • 3 Stars

     

    (0)

  • 2 Stars

     

    (0)

  • 1 Stars

     

    (8)

69%

of respondents would recommend this to a friend.

Pros

  • Reliable (13)
  • Rugged (5)
  • Versatile (5)

Cons

    Best Uses

    • High-end equipment (8)
      • Reviewer Profile:
      • Power user (7), Professional (7), Casual user (6), Enthusiast (6)
      • Primary use:
      • Personal (24), Business (4)
      • Was this a gift?:
      • No (8)

    Reviewed by 30 customers

    Sort by

    Displaying reviews 1-10

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    (1 of 9 customers found this review helpful)

     
    1.0

    Where is t he spec sheet?

    By JR

    from Whiting, NJ

    Pros

      Cons

        Best Uses

        • Fishing Line Sinker

        Comments about RadioShack® Snap-Together Ferrite Choke Core:

        I still think Radio Shack gets the small component parts from junk heaps, because there's never a spec sheet.

        • Primary use:
        • Personal
        • Was this a gift?:
        • No

        (2 of 3 customers found this review helpful)

         
        5.0

        Works well

        By DickB

        from Westwood, MA

        About Me Casual User

        Verified Reviewer

        Pros

        • Easy Install Effective

        Cons

          Best Uses

          • Computer Power Cable

          Comments about RadioShack® Snap-Together Ferrite Choke Core:

          I was experiencing interference on my radio from my new Dell XPS desktop (Intel core I5) and this ferrite core choke worked very well in eliminating the interference. It went from an S meter reading of 2-3 to zero on my 2 meter single sideband radio (Kenwood TS-2000X).

          • Primary use:
          • Personal
          • Was this a gift?:
          • No

          (16 of 17 customers found this review helpful)

           
          4.0

          Ferrite chokes work if used correctly

          By JonBoy

          from Elgin, OR

          About Me Power User

          Verified Reviewer

          Pros

          • Consistent Performance
          • Rugged
          • Versatile

          Cons

            Best Uses

            • Dorm Room
            • High-End Equipment
            • Home Theater
            • Travel

            Comments about RadioShack® Snap-Together Ferrite Choke Core:

            I am a licensed amateur radio operator. Hams use these ferrite chokes all the time. Our stations and antennas are in close proximity to all of our other electronic gear: computers, TV's, stereos, phone systems, you name it. It helps to have a little knowledge about how to use them. Even without a whole lot of know-how, a little experimentation will often yield good results. The principle behind these is that RF interference travels on the surface of conductor. It can be picked up from various sources and make antennas out of all kinds of wiring. If the source of the RF is close enough, it can hit the internal electronic directly, without travelling on the wiring. These chokes won't help in that case. Just experiment with putting them on where wires enter the gear that picking up the interference: TV cables, power cords, whatever. Don't stick them on the ground side of a DC line. It may isolate that section of line and turn it into an antenna and make the problem worse. Just keep experimenting. This type of choke only works with "common mode" interference. (Google it.) This is where the EMI is distributing on both the "hot" and the "ground/shield." If the interference is coming in on only one half of a line, an in-line filter of another type is required. They really do work, and have been used by thousands of ham operators to deal with real "close-up" interference for many years.

            • Primary use:
            • Personal
            • Was this a gift?:
            • No

            (3 of 3 customers found this review helpful)

             
            4.0

            Helpful tool

            By Sparks

            from Nebraska

            About Me Power User

            Pros

            • Rugged
            • Versatile

            Cons

              Best Uses

                Comments about RadioShack® Snap-Together Ferrite Choke Core:

                I use these to supress RFI from my Ham Radio equipment into Computers, Phones and other equipment. They do work - for phone lines make one wrap around the core so you have a loop. For my USB cables I needed 2 of these - you may need more than one for a cable depending on what you are trying to supress. I suspect the ferrite material is #43 which is typical for these I wish you had #73 or 77 too. For difficult cases use the larger donut cores #73 from supply houses.

                • Primary use:
                • Personal
                • Was this a gift?:
                • No

                (3 of 3 customers found this review helpful)

                 
                5.0

                Simple and inExpensive

                By Bob in Rog

                from Rogersville, MO

                About Me Enthusiast

                Pros

                • Easy to install
                • Perfect result

                Cons

                  Best Uses

                    Comments about RadioShack® Snap-Together Ferrite Choke Core:

                    I installed a 10M antenna 15 ft from my direct TV dish. TX at any power was wiping out the direct TV signal to receiver. One choke resolved the problem. Have tested it up to 100W output. I will have 2 or 3 on hand at all times in the shack.

                    • Primary use:
                    • Personal

                    (8 of 24 customers found this review helpful)

                     
                    1.0

                    No Tech Data

                    By rob

                    from Sunrise FL

                    About Me Power User

                    Pros

                      Cons

                      • Incompatible

                      Best Uses

                        Comments about RadioShack® Snap-Together Ferrite Choke Core:

                        What mixture is it made of?
                        The mixture gives the frequency range in which it works best. Without that info, you are wasting time and money.
                        Extra CLass Amateur Radio operator
                        BSME / BSEE

                        • Primary use:
                        • Personal
                        • Was this a gift?:
                        • No

                        (9 of 9 customers found this review helpful)

                         
                        5.0

                        Better than expected results!

                        By The DBA

                        from Lehigh Valley, PA

                        About Me Casual User

                        Verified Reviewer

                        Pros

                        • Consistent Performance
                        • Inexpensive solution

                        Cons

                        • None

                        Best Uses

                        • Computer speakers

                        Comments about RadioShack® Snap-Together Ferrite Choke Core:

                        From another review: "And if you have a multi-thousand-watt commercial broadcast station located just down the street, you can't expect an inexpensive ferrite choke to eliminate interference from a source like that!"

                        Well, maybe you can. There is a radio station broadcasting less than 1.5 miles from my house and it was loud and clear through my computer's speakers. Always had to power the speakers down if I wasn't listening music. When I was listening to music, the radio station was always in the background anyway.

                        Read about these ferrite rings and decided it was cheap enough, so I bought three different sizes. It turns out I only needed to put them on one cable -- the thicker one coming out of the back of the sub-woofer box leading to the speakers.

                        The one's intended for coax cable were just a little too large in diameter and would slide on the cable, so I put one of the smaller ones behind it securing it with a zip tie because it wouldn't snap shut (a little too narrow, in this case). I put four of them on as close to the back of the sub-woofer as possible, with the smaller ones holding the larger ones in place.

                        No more 99.9 The Hawk broadcasts!

                        Very happy with this solution.

                        • Primary use:
                        • Personal
                        • Was this a gift?:
                        • No

                        (1 of 12 customers found this review helpful)

                         
                        1.0

                        so far they have not stopped RFI any su

                        By wyatte earp

                        from macon ga

                        About Me Casual User

                        Verified Buyer

                        Pros

                          Cons

                            Best Uses

                              Comments about RadioShack® Snap-Together Ferrite Choke Core:

                              have placed on numerous cable/elec cord, no good results

                              • Primary use:
                              • Personal
                              • Was this a gift?:
                              • No

                              (7 of 7 customers found this review helpful)

                               
                              5.0

                              Eliminated RFI hash & fixed X10 problem

                              By Tech guy

                              from Boca Raton, FL

                              About Me Enthusiast

                              Verified Reviewer

                              Pros

                              • Consistent Performance
                              • Good Length
                              • Good Warranty
                              • It works
                              • Rugged
                              • Versatile

                              Cons

                              • None

                              Best Uses

                              • High-End Equipment
                              • Switching power supplies

                              Comments about RadioShack® Snap-Together Ferrite Choke Core:

                              This filter really works for eliminating RFI interference that stopped some of my power line X10 wall socket receivers from responding. I placed the filter on the AC power cord of the DVD recorder/HDD copier that was causing the problem even when turned off. Put the filter as close as possible to where the wire exits the case. Pass wire through the 17/64" ID hole in the filter and snap shut. Make a loop in the wire to hold filter in place. This filter should help eliminate RFI put out by most switching power supplies.

                              • Primary use:
                              • Personal
                              • Was this a gift?:
                              • No

                              (4 of 4 customers found this review helpful)

                               
                              4.0

                              Great DIY tweak on audio equiptment

                              By Can do

                              from Northwest New Mexico

                              About Me Enthusiast

                              Verified Reviewer

                              Pros

                              • Got the job done

                              Cons

                                Best Uses

                                • High-End Equipment

                                Comments about RadioShack® Snap-Together Ferrite Choke Core:

                                I have mid-fi digital audio equiptment ($20K). Used these on unshielded speaker cables, interconnects and electrical power lines. Results were fantastic. Best results when used on all cables. Like a total system upgrade, for less than $50!!

                                • Primary use:
                                • Personal

                                Displaying reviews 1-10

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