Topnisus [Pack Of 10] Clip-On Ferrite Core Ring Bead Anti-Interference High-Frequency Filter RFI EMI Noise Suppressor Cable Clip (3Mm Inner Diameter) Review

I was having a major problem with RFI and EMI being routed through my studio monitors and guitar amp in my home studio. The loud buzzes and blushes of radio stations could be heard loud and clear, and the signals were very strong. Over the past few years I have tried many different means to solve this problem. I needed about 20 of these chokes, but they were my absolute lifesaver! I couldn't compose music for years without hearing horrible hum and radio stations, and now I finally can! The…

Have you ever seen those tube things on a cable and wondered what they're for? That's it. They are mainly designed to prevent electronic interference both when turning the device on and off. I work at a high school where administrators get walkie-talkies. When the walkie-talkie is activated near the computer, the speakers emit a horrible squeak. Likewise, if I place my phone near the speakers, I occasionally hear a buzzing noise through the speakers as it polls the nearest cell tower. These…

My LED landscape lighting is interfering with FM TV reception - the lights completely block channel 11 reception when on. I tested it on a lamp next to the antenna and the effect was immeasurable, so this doesn't solve my problem. It would be useful to know the type of ferrite so one can examine and determine if that type would be effective at the spurious frequency. I tried several rings in different places between the lamp and the power supply (also tried different power supplies). They were…

These ferrite cores arrived on time as expected. And they work well enough to boot. Unfortunately for me they weren't enough to mitigate the signal noise I experienced with two different pairs of USB powered PC speakers. These are Revain Basics USB powered speakers and Dell AE215 USB powered speakers (no subwoofer). Both sets of speakers suffer from severe signal noise when powered by the host computer when connected to the 3.5mm jack. I added a strand of wire to the audio cable near the source

It didn't work for my application but I still give 4 stars - they are well made. The description and picture are a bit misleading, "(diameter 3mm/5mm/7mm/9mm/13mm)" and the picture gives the impression that you will receive a set of different sizes. I noticed this discrepancy and inquired, and the seller gave an accurate answer (I bought them anyway, mostly by mistake; I will use them for other purposes). It's actually 10 identical (small!) parts with an internal diameter of 3mm - suitable for…

My LED landscape lighting interferes with VHF TV reception - when the lights are on they completely block channel 11 reception. I tested it on a lamp next to the antenna and the effect was immeasurable, so this doesn't solve my problem. It would be useful to know the type of ferrite so one can examine and determine if that type would be effective at the spurious frequency. I tried several rings in different places between the lamp and the power supply (also tried different power supplies). They

These ferrite cores arrived on time as expected. And they work well enough to boot. Unfortunately for me they weren't enough to mitigate the signal noise I experienced with two different pairs of USB powered PC speakers. These are Revain Basics USB powered speakers and Dell AE215 USB powered speakers (no subwoofer). Both sets of speakers suffer from severe signal noise when powered by the host computer when connected to the 3.5mm jack. I added a strand of wire to the audio cable near the source