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Package Content: 5pcs x Ferrite Ring Toroid core iron（ DS400060）
MICHAEL
Reviewed in the United States on March 4, 2025
Works well for RF choke
Joe Dobbelaar
Reviewed in the United States on February 4, 2025
5 brittle rings left out in the cold and thrown around with 1cm of foam to cover them isn't gonna stop them from shattering
Greg
Reviewed in Canada on February 18, 2025
Calculate size you need before buying. Fun to play with. I glue 3 together to increase inductance before winding voils.
V
Reviewed in Canada on January 22, 2025
Typical sum ting wong chinese product. Permeability did not match any standard mixes.
Robert
Reviewed in the United States on July 5, 2024
This was installed in the electrical panel by an electrician to eliminate the buzzing of appliances and flickering lights when the instant hot water heater comes on.
Kevin McClain
Reviewed in the United States on February 8, 2024
These toroids arrived promptly and were undamaged and as described. The size is good for thin coaxial cable and unterminated power lines. These did the trick to eliminate common mode current back into my transciever from a longwire on a 9:1 balun. I also have an air wound choke on the line which lowers, but does not stop common mode current, and which only reduces noice on part of the spectrum. The addition of this toroid to the feedline stopped the CMC and quieted down noise accross the spectrum.If you are looking for a toroid to use on 110ac wires with standard or grounded plugs you will need a larger size, these would be perfect for DC lines from your power supply.I am unsure of the mix, but will attemp to build a few baluns/ununs in the future and see how they perform. This is a great price and they are good toroids.
Ben Clardy
Reviewed in the United States on November 9, 2024
There was a lot of excess electrical noise on my Starlink conversion to 12v. These rings helped calm things down a lot. Now it performs much better.
BG
Reviewed in the United States on September 21, 2023
I used this to wind 6 turns of a USB A to USB B type cable (usually used on printers) for a QDX ham radio 5 watt transceiver. I was having RF problems getting into the computer, and this solved it with no adverse effects on signal. A bit heavy for a light weight portable radio, but solid performance.
online customer
Reviewed in the United States on December 17, 2022
Use item rings to contain RFI in my elecrical cables/wiring. Works decently for my cable/wiring usage.
Jack
Reviewed in the United States on October 3, 2022
There is no specification on these toroids. Through an experiment I would guess them to be somewhere around type 61 material. I was hoping for type 43. Oh well. You get what you pay for.
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