Lundahl LL1571 Audio transformer
Description
LL1571 is a microphone input transformer built up from two coils and a high permeability mu metal core. Each coil is wound in three sections with electrostatic shields connected to separate pins. This result in a transformer with a very broad band, also ideal for splitting purpose. The two-coil structure in combination with the mu-metal can results in a high immunity to external magnetic fields.
Turns ratio: 1 + 1 : 1.75 + 1.75
Dims (Length x Width x Height above PCB (mm)): 38 x 24 x 17
Spacing between pins: 5.08 mm (0.2")
Spacing between rows of pins: 27.94 mm (1.1")
Offset of earth pin rows from adjacent rows: 2.54 mm (0.1")
Weight: 48 g
Rec. PCB hole diameter: 1.5 mm