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Lundahl Line input transformer, LL1545E

LL1545E

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Lundahl Line input transformer, LL1545A

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68,20 €

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Line input transformer LL1545E(Based on LL1545A, but with all windings symmetrical)

LL1545E is an audio transformer primarily designed for line input applications. The transformer consists of two primary and two secondary windings. The primary and secondary sections are separated by Faraday shields. All windings are internally split between coils which increase the flexibility of the transformer, as windings can be connected in series, in parallel or individually without a risk of using the transformer asymmetrically.

The LL1545E is made with a mu-metal lamination core and is housed in a mu-metal can.

Turns ratio: 1 + 1 : 1 + 1
Dims: (Length x Width x Height above PCB (mm)) 38 x 24 x 17

Spacing between pins: 5.08 mm (0.2")
Spacing between rows of pins: 27.94 mm (1.1")
Weight: 51 g
Rec. PCB hole diameter 1.5 mm

Static resistance of each windings: 295 Ohm

Distortion (primaries connected in series, source impedance 600Ohm):+ 22 dBU primary level, 40 Hz: 0.2 %
Frequency response(source 600 Ohm, load 100kOkm)(HF frequency response can be improved with RC termination)5 Hz -45 kHz +/-1dB@ 0dBU

Self resonance point: ~ 140 kHz

Isolation between primary and secondary windings/ between windings and shield/ between windings in same group3 kV / 1.5 kV/ 1kV


Core: Mu-metal

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Lundahl Line input transformer, LL1545E

Lundahl Line input transformer, LL1545E

Lundahl Line input transformer, LL1545A