High Performance Mic Input Transformer from the renowned Lundahl Transformer company.
The LL1530 is a microphone input transformer used for matching a 200 or 800 Ω microphone to 10 kΩ or for matching a high impedance source to a microphone input 
The transformer consists of two coils, each with one primary and one secondary winding separated by an electrostatic shield, and a high permeability mu-metal core.
The transformer is encapsulated in a mu-metal case for magnetic shielding.
For best performance, the high impedance side of the transformer (3.5 + 3.5) should be connected in series
 
Please allow 3-4 weeks for delivery until we have stock