Lundahl Microphone Transformer, LL1587
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  • Lundahl Microphone Transformer, LL1587

Lundahl Microphone Transformer, LL1587

LL1587
57,22 € Maksudeta
69.81 € tax incl. for EU buyers
Lundahl Microphone Transformer, LL1587
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Microphone Transformer LL1587

The LL1587 is small size microphone input transformer, with a high permeability mu-metal core and two two-section coils with internal Faraday shields. The transformer is housed in a mu-metal can.

Turns ratio: 1 + 1 : 4

Dimensions Max. Length x Width x Height above PCB (mm): 28 x 17.5 x 12
Spacing between pins: 3.81 mm(0.15)
Spacing between rows of pins: 20.32 mm (0.8)
Rec. PCB hole diameter: 1.5 mm
Weight: 18 g

Turns ratio 1 + 1 : 4
Static resistance of each primary 56 W
Static resistance of secondary 600 W
Primary level at 0.2 % THD, 50 Hz signal. Primaries connected in parallel, source impedance 150 W: -10 dBU (typically) (sec. level +2 dBU)
Primary level at 1 % THD, 50 Hz signal Primaries connected in parallel, source impedance 150W: +2 dBU (sec. level +14 dBU)

Frequency response +/- 1.0 dB Primary signal level -5 dBU, source 200 W Primaries in parallel, secondary termination 10k

15Hz 150kHz +/- 1 dB

Optimum termination for best square-wave response (Connection 1:4, source imp. 200 W, following stage input impedance < 10 kW)

no additional termination required

Optimum termination for best square-wave response (Connection 1:4, source imp. 200 W, following stage input impedance >> 10 kW)

10 kW in series with 200 pF

Isolation between windings / between windings and shield

3 kV / 1.5 kV
LL1587
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