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Palomar Engineers provides ferrite and iron power core products for radio communication and (RFI/EMI) interference suppression from 100 Khz to 1000 Mhz.  We also stock antenna products including static bleeders, common mode feed line chokes, and voltage & current balun/ununs in ratios 1:1 to 16:1 used for antenna and transmission line matching and radio receiver noise reduction.


Our RFI products are used in AM/FM Broadcast stations, Amateur Radio stations, consumer households, radar installations,  automotive, solar and medical equipment, and industrial and manufacturing operations.

50 anniversary50th Anniversary Special – FREE SHIPPING ON ALL USA ORDERS OVER $100

Click on Image for product info

Ferrite Toroids - Mix 31, 43, 61, 77

Ferrite Toroids – Mix 31, 43, 61, 75, 77

RFI Solutions

RFI Solutions from Kilohertz to Gigahertz

SNAP ON Ferrite Beads

SNAP ON Ferrite Beads Mix 31, 61, 75

Balun Kits 1:1 4:1 9:1

Balun Kits 1:1 2:1 4:1 9:1

Ferrite Beads

Slip On Ferrite Beads

CUBE Baluns™

CUBE Baluns™

kurt speaks out

Kurt Sterba Products

Super Choker™

Super Choker™

sleeve balun - 45 degrees

Sleeve Baluns



Got RFI Problems? Download Latest RFI Tip Sheet HERE

Bothered by Antenna Static?  Check out the new Antenna Static Bleeder products HERE

NEW Mini 350W PEP QRP Baluns/Ununs in ratios: 1:1, 1.5:1, 2:1, 3:1, 4:1, 5:1, 6:1, 7.5:1, 9:1, 12:1, 16:1 – Great for beverage antennas, portable antennas, mini loops, verticals, end feds, zepp, dipoles, etc. Click HERE

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Presentation at October 2014 BozoNet Swap Fest. (www.2meterbozo.net)

Tips, tricks and techniques for RFI dummies using baluns, ferrites, and ham ingenuity to cure RFI in your shack and lower your receiver noise to work more DX. 

Download Link HERE

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ARRL SW Convention 2014 Presentation:

How to cure RFI, work more DX and keep your neighbors’ happy!

Download Link HERE

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NEW!!!! – RFI KITS for Alpha, Ameritron, B&W, Collins, Command, Dentron, Drake, Gonset, Hallicrafters, Hammarlund, Heathkit, Henry, Hunter, Kenwood Icom, Palomar, Palstar, QRO, SBE, Swan, Tokyo Hy-Power, Yaesu

Check Bits & Pieces Link for spare parts for old Palomar Engineers products


We Ship Worldwide



Check out the new “DOWNLOADS” section under TECH Support with older Palomar Engineers(TM) product manuals



NEWS FLASH: FT5ZM, Amsterdam Island DXPEDITION ordered Palomar Engineers Products for their operation in 2014.  Follow their progress at www.amsterdamdx.org.

We are always looking for new products to sell or distribute under the Palomar Engineers name – if you have a product or idea, please send us an email at Sales@Palomar-Engineers.com and we will be glad to discuss it with you.



Are you an Audiophile, Ham or Musician that uses vacuum tubes?  Please visit our sister company at www.TubeMeister.net (or click on logo below) for a great selection of custom made vacuum tube sets.


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