HF High Power Impedance Transformers

Slip On Sleeve Chokes

Store/Antenna Products/Coax Feed Line Common Mode Chokes/Slip On Sleeve Chokes

sleeve balun 45 degrees gif - HF High Power Impedance Transformers

Palomar 1:1 feed line choke kits are current baluns (split output) or ununs (coax output). They consist of several models with 5-15 large ferrite beads that slip over the coax (but will not slip over a connector). Also included are three lengths of shrink tubing to enclose the balun and hold the beads in place on the cable. They work from 1.8-300 MHz (see impedance table for each product for measured choking impedance levels for 5-15 beads) and allow use of full power rating of the coaxial cable at an SWR of 1:1. No tools are required for installation, just a source of heat to shrink the tubing using a heat gun, lighter, matches.

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3345961630 - HF High Power Impedance Transformers
Slip On Coax Feed Line Choke - 1"/25.4mm cable, 1.8-300 MHz
Slip On Coax Feed Line Choke - 1"/25.4mm cable, 1.8-300 MHz
SKU BA-200-5
List price $149.95
Save 27%
$109.95
On Sale
811140070 - HF High Power Impedance Transformers
Slip On Feed Line Choke/Isolator - 1/4"/6mm coax cable, RG-58/LMR240, 1.8-300 MHz
Slip On Feed Line Choke/Isolator - 1/4"/6mm coax cable, RG-58/LMR240, 1.8-300 MHz
SKU BA-58-5
List price $24.95
Save 32%
$16.95
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811140070 - HF High Power Impedance Transformers
Slip On Feed Line Choke/Isolator - 1/4"/6mm coax cable, RG-58/LMR240/RG8X, 1-100 MHz
Slip On Feed Line Choke/Isolator - 1/4"/6mm coax cable, RG-58/LMR240/RG8X, 1-100 MHz
SKU SLO31-1/4-5
List price $24.95
Save 28%
$17.95
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775856128 - HF High Power Impedance Transformers
Slip On Feed Line Common Mode Line Isolator - 1/2"/12.7mm coax cable, 1.8-300 MHz
Slip On Feed Line Common Mode Line Isolator - 1/2"/12.7mm coax cable, 1.8-300 MHz
SKU BA-8-5
List price $49.95
Save 60%
$19.95
On Sale
775856128 - HF High Power Impedance Transformers
Slip On Feed Line Common Mode Line Isolator/Choke - 1/2"/12.7mm coax cable, 1.8-100 MHz, 5,10,15, 20 bead option, Mix 31
Slip On Feed Line Common Mode Line Isolator/Choke - 1/2"/12.7mm coax cable, 1.8-100 MHz, 5,10,15, 20 bead option, Mix 31
SKU SLO31-1/2-5
List price $29.95
Save 33%
$19.95
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The high power ferrite impedance transformer series (> 1:1), configured with outputs to act as a baluns (unbalanced coax in to balanced load output) or as ununs (unbalanced coax input to unbalanced load output) are designed for demanding radio transmitter stations that run over 1,000 watts PEP or run continuous modes like AM, digital, RTTY, FM, etc. at high power levels. Radio contest operators, commercial shortwave broadcast, and industrial and commercial stations use these transformers for for a variety of balanced and unbalanced antenna loads.  Baluns are typically used for balanced loads and antennas like dipoles, loops, log periodics, and direct feed yagi/beams.  Ununs are used  with verticals, end fed wires, horizontal dipoles, G5RV/ZS6BKW, Zepps, vertical wire beams, etc).  All products are in an enclosed NEMA water resistant box with SO-239 input connector and stainless steel side/top studs with wing nuts or side and top eyebolts.  The enclosure box has mounting “side feet” for attachment to a post or antenna boom using nylon ties.