Lundahl Amorphous core tube amplifier output transformer, LL1664AM-50mA

Amorphous core tube amplifier output transformer LL1664 3k : 8 ohms

The LL1664 is a four-sectioned dual coil C-core tube amplifier output transformer for 3 k: 8 ohms impedance ratio available in PP and SE versions. The coil is wound using our high internal isolation technique with isolation foil between each copper layer. The core is an audio C-core of our own production.

Turns ratio 9.6 + 9.6 : 1 or (3.2+6.4)+(3.2+6.4) : 1

Weight: 1.35 kg
Static resistance of each primary: 74 W
Static resistance of secondary: 0.5 W
Isolation between windings / between windings and core: 4 kV / 2 kV
Max DC current through any primary winding: 200mA
Primary leakage inductance, primaries in series: 8mH