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Your cart is empty.One FT240-43 Toroid Ferrite Core Fair-Rite Bran,d AL=1075 plus or minus 20 percent, uH=(AL x Turns squared)/1000 Wideband, Transformers 5 - 400 MHz, Power Transformers 0.5 - 30 MHz, RFI Suppression 5 - 500 MHz, OD = 2.40 inch / 61.0 mm plus or minus 1.30 mm, ID = 1.40 inch / 35.55 mm plus or minus 0.85 mm, Ht = 0.50 inch / 12.7 mm plus or minus 0.50 mm From bulk packaging, not in retail packaging
EatingOrange
2025-08-22 10:00:11
I've made several 49:1 and 64:1 ununs with these ferrites. They work as expected and are a quality product with no rough edges or abrasions.
The Alpha Akita
2025-07-23 11:13:57
These are good toroid cores. Made a couple of chokes with these and they are working extremely well for me. I will be purchasing more.
Christopher W.
2025-07-22 14:02:21
Worked great
Quin
2025-07-19 20:54:54
Great toroid core with the proper quantum flux transfer ratio well within the bounds of permeability and functional field current control that I imagined in my mad-RF-scientist lab notes.
ron
2025-07-09 13:04:57
Works as expected.
Doyle Jennings
2025-06-27 20:59:21
The FT240-43 ferrite toroid core is a great toroid for amateur radio and audio projects! I use this core with a 10 ft. USB A to.USB B Trip-Lite cable between my Dell desktop computer and my YAESU FTDX-101MP Transceiver to eliminate audio noise from the switching PS in the computer. There are several videos on YouTube that illustrate this use.
Paul C. Barnes
2025-06-12 09:59:54
The correct material for chokes and baluns.
Longshorts
2025-06-01 17:54:27
Arrived intact, undamaged, on time, can be used for 49:1 or 64:1 100W transformer for end fed half wave antenna from 160M to 6M. Well pleased, nice price.
michel chouinard
2025-04-12 13:19:15
Very good value for balun
sabino r.
2025-02-18 16:24:44
El producto llego en buenas condiciones, despues de construir el transformador funiona a la perfeccion gracias Amazon.
Dwight
2025-02-10 11:42:04
Used this Balun for a 49:1 Balun for an end fed antenna
joe gregoire
2025-01-17 20:17:45
Product arrived promptly. No issues. I would purchase this again.
Customer
2024-12-03 15:59:01
Works
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