LL1577 Microphone Input Transformer, Line-box Transformer

The LL1576 and the LL1577 are high performance microphone input transformers/line-box transformers with high
permeability mu-metal cores and high bandwidth coils. The LL1576 and the LL1577 use the same pin-out as our well
known microphone transformer LL1538.
In both types, primary and secondary windings are separated by electrostatic shields. The very low leakage inductance
and thus excellent frequency response is achieved by a two-coil, three-section per coil winding structure.
The transformers are encapsulated in mu-metal cases for magnetic shielding.