For Sale 4:1 Guanalla balun 5Kw

Discussion in 'Ham Radio Gear For Sale' started by W7OWC, Oct 13, 2018.

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  1. W7OWC

    W7OWC Ham Member QRZ Page

    Specs:
    2 2.4"x.5" stacked ferrite cores. Mix 52 material
    Two layers Scotch 27 glass tape > 6kV insulation
    Bifilar windings #14 thermalize wire sleeved in medium wall Teflon tubing. 98 ohm impedance
    Leads >6"


    >30 db return loss 1.8-30mhz. Best return loss between 35-40db 3.5-10mhz.
    Rated for 5Kw.

    I have used this same desgin balun for building Off Center Feed Dipoles, remote baluns for doublets feed with ladder line and other antennas where a 4:1 impeadence ratio is needed. When used with a OCF Dipole that is 44' and 88' lengths I was able to achieve a <2:1 VSWR across all intended bands. This made it very easy for the radios internal tuner to match.

    $40 shipped USPS priority each ( I have two)
     

    Attached Files:

    KA8UGB, K5MTY, N1VAU and 2 others like this.
  2. QRZ
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