Lundahl Line output transformer, LL1630-5mA

Line Output Transformer for Tube Amplifiers LL1630-5mA

LL1630 is a line output transformer for tube amplifiers. The transformer is highly sectioned, and wound with a special low capacitance winding technique. This results in very good high frequency performance. The transformer has a special audio C-core of our own production.

Turns ratio: 7.2 + 7.2 : 1+1

Static resistance of each primary (average) 480 W
Static resistance of each secondary (average) 14 W
Primary DC current, primaries in series (For B0 = 0.9 T) 5 mA
Maximum DC current before core saturation, primaries in series 9 mA
Max standing DC current through any primary section 40mA
Primary inductance (primaries in series) 130 H

Frequency response @ 0 dBU output level 10 Hz - 40 KHz
(Source 2 kW , load 600 W. Primaries terminated as suggested below) +/- 0.5 dB

Max. output level at 30 Hz (Secondaries in series) 18 V rms
Weight 0.5 kg
Isolation between primary and secondary windings / between windings and core 4 kV / 2 kV