BL2 250W 1:1 & 4:1 (SWITCHED) BALUN, $5 DISCOUNT + FREE SHIPPING DURING OUR BF/CM SALE! - DEFAULT TITLE

Skip to product information
1 of 5
The Elecraft BL2 is a ruggedized general-purpose wideband balun that can be configured as either a 1:1 or 4:1 balun by means of a slide switch. It is intended to match balanced feed lines to the unbalanced antenna connection of an Elecraft or other manufacturer’s transceiver or antenna tuner.
View full details
  • Overview
  • Specs
  • Reviews
  • Manuals
  • Price List/Order


OVERVIEW

Our highly efficient balun can handle up to 250 watts and can handle 1:1 and 4:1 ratios via an onboard switch. It is very small (just 1.5 x 3") and lightweight, making it an excellent choice for both home and field use. It uses a special winding technique to reduce losses and extend the useful range, resulting in an SWR of less than 1.2:1 from 500 kHz to 55 MHz (200-ohm load). It includes rugged screw terminals for the balanced output as well as ground and can be used in a variety of matching applications.

Note: This product is a kit that may involve building the product by selecting individual components, soldering them to the circuit board, winding toroids, installing LEDs and displays, calibrating circuits to meet specified performance levels. 




SPECS

  • Power Rating: 250 watts with a matched load.
  • Bandwidth: Input VSWR less than 1.25 when connected to a 200-ohm resistive load, 500 kHz to 55MHz



    BL2 250W 1:1 & 4:1 Balun Quantity Price
    BL2 BL2 250W 1:1 & 4:1 (switched) Balun, $5 Discount + Free Shipping during our BF/CM Sale! - Default Title
    $64.95 $69.95

    December Specials Quantity Price
    K4D-F K4D Transceiver, Factory Assembled. $100 Discount + Free Shipping during our BF/CM Sale!
    $6,489.95 $6,589.95
    K4-F K4 Transceiver, Factory Assembled, $65 Discount + Free Shipping for our BF/CM Sale!
    $5,524.95 $5,589.95
    K4/10-F K4 10W Transceiver, Factory Assembled, $70 Discount + Free Shipping for our BF/CM Sale!
    $4,919.95 $4,989.95
    SP4 SP4 External Speaker for the K4/K4D/K4HD, Discount $25 + Free shipping during our BF/CM Sale!
    $344.95 $369.95
    K-Pod K-Pod Control Panel for the K4/K4/0/K3S/K3-$25 Discount + Free Shipping during our BF/CM Sale!
    $374.95 $399.95
    K4TOK4DUPG K4 Upgrade Kit to K4D-$35 Discount + Free Shipping for our BF/CM Sale!
    $1,114.95 $1,149.95
    MH4 MH4 Hand Held Microphone (K4,K4/0,K3S,K3), $15 Discount + free shipping during our BF/CM Sale! )
    $64.95 $79.95
    ES100 K4 Carrying Case & Elecraft Luggage Tag-$20 Discount + Free Shipping during our BF/CM Sale!
    $129.95 $149.95
    LTAG LTAG Elecraft Luggage Tag, Discounted during + free shipping our BF/CM Sale!
    $5.00 $6.00
    KX3-F KX3 160-6M Transceiver, Factory Assembled, $60 Discount + Free Shipping during our BF/CM Sale!
    $1,589.95 $1,649.95
    MH3 MH3 Hand Microphone (KX-LINE), $15 Discount + free shipping during our BF/CM Sale!
    $64.95 $79.95
    ES80 ES80 KX3 Carrying Case-$20 Discount + Free Shipping during our BF/CM Sale!
    $49.95 $69.95
    KX2-F KX2 Transceiver --(KXBT2 Battery sold separately), $25 Discount + Free Shipping during our BF/CM Sale!
    $1,174.95 $1,199.95
    KXIBC2 KXIBC2 KX2 Internal Battery Charger, Kit- $25 Discount + Free Shipping during our BF/CM Sale!-
    $154.95 $179.95
    AXE1 AXE1 40 M Antenna Extender for AX-Line Antennas, $15 Discount + free shipping during our BF/CM Sale!
    $44.99 $59.99
    ES20 Zippered Carrying Case for KH1, $15 Discount + Free Shipping during our BF/ CM Sale! - Default Title
    $44.95 $59.95
    KPA1500-F KPA1500 1500W Amplifier w/Internal ATU-$185 Discount + Free Shipping during our BF/CM Sale!
    $7,214.95 $7,399.95
    KPA500-F KPA500 500w Amplifier, Assembled - NOTE: Select 1 PWR Cable Below, $25 Discount + Free Shipping during our BF/CM Sale!
    $3,309.85 $3,349.85
    PWR-US IEC 120V U.S Power Cord w/fuses, Select One (N/C) w/KPA500 Purchase
    $0.00
    PWR-US240 US 240V Power Cord Exchange, Select One (N/C) w/KPA500 Purchase
    $0.00
    PWR-EU2P IEC-European (Schuko) Power Cord w/fuses, Select One (N/C) w/KPA500 Purchase
    $0.00
    PWR-VKZL Australian Power Cord W/ Fuses, Select One (N/C) w/KPA500 Purchase
    $0.00
    KXPA100-AT-F KXPA100-AT 100W Ext Amp with KXAT100 100W ATU, Factory Assembled, $100 Discount + Free Shipping during our BF/CM Sale!
    $1,689.95 $1,789.95
    KXPA100-F KXPA100 100 W External Amplifier-Assembled (incl. DC power cable)-$75 Discount + Free Shipping during our BF/CM Sale!
    $1,394.95 $1,469.95
    KAT500-F KAT500-F High Power ATU-$25 Discount + Free Shipping during our BF/CM Sale!
    $1,024.95 $1,049.95
    T1-A T1 Antenna Tuner, Assembled, $35 Discount + Free Shipping during our BF/CM Sale! - Default Title
    $324.95 $359.95
    2T-GEN 2T-Gen 2-Tone Test Generator(700, 1900 Hz), $25 Discount + Free Shipping during our BF/CM Sale! - Default Title
    $114.95 $139.95
    AF1 AF1 Audio Frequency Filter, $25 Discount + Free Shipping during our BF/CM Sale! - Default Title
    $104.95 $129.95
    AT1 AT1 41 dB Step Attenuator, $15 Discount + Free Shipping during our BF/CM Sale! - Default Title
    $74.95 $89.95
    BL2 BL2 250W 1:1 & 4:1 (switched) Balun, $5 Discount + Free Shipping during our BF/CM Sale! - Default Title
    $64.95 $69.95
    CP1 CP1 Directional Coupler, 1-30 MHz, $10 Discount + Free Shipping during our BF/CM Sale! - Default Title
    $89.95 $99.95
    XG3 XG3 RF Signal Source, $35 Discount + Free Shipping during our BF/CM Sale! - Default Title
    $344.95 $379.95
    KAT4-K KAT4 Auto-Tuner Option, Kit - $45 Discount + Free Shipping during our BF/CM Sale!
    $544.95 $589.95
    KPA4-K KPA4 K4 100 W Upgrade, Kit-$25 Discount + Free Shipping for our BF/CM Sale!
    $650.95 $675.95