Lundahl Silver wire moving coil input transformer, LL1931Ag

Silver Wire Amorphous Core Moving Coil Input Transformer LL1931Ag

LL1931Ag is a silver wire version of our high performance moving coil step-up transformer LL1931. The LL1931Ag combines our unique uncut amorphous cobalt core and our dual coil structure with high purity (99.99%) silver wire in an oversized design. The objective is to provide the best possible MC transformer, cost-no-object. 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) 43 x 28 x 22
Spacing between pins 5.08 mm (0.2")
Spacing between rows of pins 30.5 mm (1.2")
Rec. PCB hole diameter: 1.5 mm
Weight: 80 g
Static resistance of each primary: 1.5 ?
Static resistance of each secondary: 95 ?
Frequency response (serial connection, source 50 ?, no load / secondaries open): 10 Hz -- 100 kHz +/- 1.0 dB
Isolation between windings/ between windings and core: 3 kV / 1.5 kV