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Lundahl LL1538 Microphone Input Transformer

Item number: LL1538

The LL1538 and the LL1538XL are high performance microphone input transformers, each with a high permeability mu-metal core and two three-section coils.

Category: Microphone Transformers


84,42 €

including 19% VAT., plus shipping (kleinteile)

Recommended retail price: 99,87 €
(You save 15.47%, that is 15,45 €)
From Price per unit
10 72,99 €
20 72,44 €
50 71,38 €
100 68,96 €
Available now!

Shipping time: 2 - 3 workdays



In the LL1538XL the core is about 45% larger than in the LL1538, resulting in a larger level capability. In both types, primary and secondary windings are separated by electrostatic shields. The three-section winding structure of the transformers results in a very low leakage inductance and thus an excellent frequency response. The transformers are encapsulated in mu-metal cases for magnetic shielding.
  • Dimensions (Max. 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: 46 g
  • Rec. PCB hole diameter: 1.5 mm
  • Static resistance of each primary: 44 Ohms
  • Static resistance of each secondary: 880 Ohms
  • Distortion (primaries connected in parallel, source impedance 200W ): 0.2 % @ 0 dBU
  • Self resonance point: > 120 kHz
  • Optimum termination for best square-wave response (Connection 1:5, source imp. 200W ): No termination necessary
  • Frequency response (source 200 W, no termination): 10 Hz - 100 kHz +/- 0.3 dB
  • Isolation between windings/ between windings and shield: 4 kV / 2 kV

Application: Microphone
Shipping weight: 0,10 Kg
Product weight: 0,05 Kg

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Price for all: 169,98 €