LL2785CAM Amorphous Core Lundahl Single-End 300B Tube transformer
Lundahl LL1677AM amorphous core interstage transformer
Description
LL1677 is a high current interstage transformer with a 1:2 step up ratio. The transformer is wound with a special low capacitance winding technique to achieve best high frequency performance. The transformer has a special high flux, low distortion audio C-core of our own production. For the LL1677, the core air gap is chosen such that the denoted DC current (80mA for a LL1677/80mA) generates a no signal core flux density of 1.2 Tesla when used with all primaries in series. This leaves a flux ensity swing of 0.4 T for the signal.
Weight 0.75 Kg
Turns ratio 1+1+1+1 : 4 + 4
Max. current through any single primary section: 100 mA
Static resistance, Winding A 88 ohms
Static resistance, winding B 69 ohms
Static resistance, winding C 800 ohms
Isolation between primary and secondary windings / between windings and core: 4 kV / 2 kV
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