четвертьволновый согласующий трансформатор

1) Engineering: balance-to-unbalance, balance-to-unbalance transformer, balance-to-unbalanced transformer, balanced-to-unbalance transformer, balanced-to-unbalanced transformer, bazooka, unbalance-to-balance transformer, unbalance-to-balanced transformer, unbalanced-to-balance transformer, unbalanced-to-balanced transformer

2) Electronics: balance-unbalance transformer, balun transformer

3) Electrical engineering: balanced converter, balun, line-balance converter