Lundahl Silver wire moving coil input transformer, LL1933Ag

Silver Wire Moving Coil Input Transformer LL1933Ag

LL1933Ag is a silver wire version of our high performance moving coil step-up transformer LL1933. The LL1931Ag combines our dual coil structure with high purity (99.99%) silver wire in an oversized design. The core is a mu metal lamination core for low distortion and for a linear magnetization curve. The dual-coil structure greatly improves immunity to external magnetic fields from power supplies, motors etc. The transformer is housed in a mu-metal housing.

Turns ratio: 1 + 1 : 8 + 8

Dimensions (L x W x H above PCB, in mm) 47 x 28 x 24
Spacing between pins 5.08 mm (0.2")
Spacing between rows of pins 35.6 mm (1.4")
Rec. PCB hole diameter: 1.5 mm Weight: 115 g
Static resistance of each primary: 1.3 ?
Static resistance of each secondary: 80 ?
Frequency response
(serial connection, source 50 ?, no load / secondaries open): 8 Hz -- 100 kHz +/- 1.0 dB
Isolation between windings/ between windings and core: 3 kV / 1.5 kV