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  • Lundahl 1524 Audio output transformer
Lundahl Transformers
Varenummer: LL1524

Lundahl 1524 Audio output transformer

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Kort beskrivelse

Balanced drive. +24 dBU Turns Ratio: 1+1 : 1+1
Detaljebeskrivelse
Inkl. moms DKK 460,00

Detaljebeskrivelse

Audio Output Transformer LL1524

LL1524 is an audio output transformer for balanced drive. The LL1524 is a 5-section output transformer. This
results in a very low leakage inductance and thus excellent HF characteristics.
The LL1524 is (like all C-core audio output transformers) ideally used with negative source impedance achieved
using mixed feedback drive circuits. See separate paper for mixed feedback design principles.
Turns ratio: 1 + 1 : 1 + 1
Dims (Length x Width x Height above PCB (mm)): 48 x 34 x 22

Spacing between pins: 5.08 mm (0.2")
Spacing between rows of pins: 35.56 mm (1.4")
Weight: 125 g
Core: Audio C-core
Housing: Mu-metal
Rec. PCB hole diameter: 1.5 mm
Static resistance of each primary: 7.3 W
Static resistance of each secondary: 7.5 W
Leakage inductance of secondaries (sec. in series): 0.1 mH
No-load impedance: >1kW @ 50 Hz, +20 dBU
Optimum source impedance: Minus 14 W  (mixed feedback)
Balance of output (according to IRT, source < 10 W , Load 600 W): > 45 dB
Maximum output level before saturation (sec. in series, load 600 W) + 24 dBU @ 30 Hz
Distortion (achieved with mixed feedback drive circuit, load 600 W) < 0.04 % @ 20 dBU, 30Hz
Frequency response (source 0 W,  load 600 W): 5 Hz -- 100 kHz +/- 0.5 dB
Loss across transformer (at midband with 600 W load): 0.5 dB
Isolation between primary and secondary windings / between
windings and core:
4 kV / 2 kV
Please refer

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