Hammond Hi-Fi, 8000CT, 15Watts, 4/8/16 1650E
Lundahl LL1660 Transformer
Interesting items
Description
LL1660 is an interstage / line output transformer for tube amplifiers. The transformer is available with different core air gap for PP or SE drives. The transformer is wound with a sp ecial 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. The LL1660PP is assembled with a small core air gap to allow for some DC curren t unbalance. For the S.E. versions of the LL1660, the core air gap is chosen such that the denoted DC current (18 mA for a LL1660/1 8 mA) generates a no signal core flux density of 0.9 Tesla when used with all primaries in series. This leaves a flux density swing of 0.7 T for the signal.
Turns Ratio: 1+1+1+1 : 2.25+2.25
Weight: 0.75 kg
Static Resistance, winding A: 315 ohms
Static Resistance, winding B: 240 ohms
Static Resistance, winding C: 625 ohms
Max. Current through any single section: 50mA
Isolation between primary and secondary windings / between windings and core: 4 kV / 2 kV
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