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MFJ-974HB. 6 - 160 Meters Balanced Line Antenna Tuner.
The MFJ-974HB is a fully balanced true balanced line antenna tuner. It gives you superb current balance throughout its very wide matching and frequency range.
The MFJ-974HB is a fully balanced wide range T-Network using four gear driven 1000-Volt air variable capacitors and high-Q air wound tapped inductor, for 80-10 Meters and separate inductors for 6 and 160 Meters.
The tuning components are mounted symmetrically to insure electrical balance.
A 1:1 current balun is placed on the low impedance 50 input side to convert the balanced T-Network to unbalanced operation.
The balun is made of 50 ferrite beads on RG-303 Teflon coax to give exceptional and efficient isolation.
It stays cool even at maximum power.
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