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  • Lundahl 1539 audio transformer balanceret
  • Lundahl 1539 audio transformer balanceret
  • Lundahl 1539 audio transformer balanceret
  • Lundahl 1539 audio transformer balanceret
  • Lundahl 1539 audio transformer balanceret
  • Lundahl 1539 audio transformer balanceret
Lundahl Transformers
Varenummer: LL1539

Lundahl 1539 audio transformer balanceret

Levering: 1-3 dage

Kort beskrivelse

Line output transformator For balanced drive. +27 dBU Turns ratio: 2 : 1 + 1
Detaljebeskrivelse
Inkl. moms DKK 440,00

Detaljebeskrivelse

Audio Output Transformer LL1539

LL1539 is an audio output transformer for balanced drive.
In LL1539, the winding arrangement is such that (properly connected) the secondary windings are surrounded by cold
(neutral) parts of the primary windings. This reduces the effect of the capacitance between the primary and the
secondary windings. Thus, primaries should always be connected as in the application example below, with or without
current feedback drive (negative source impedance).
Turns ratio: 2 : 1 + 1
Dims (Length x Width x Height above PCB (mm)): 47 x 34 x 21
Spacing between pins: 5.08 mm (0.2")
Spacing between rows of pins: 35.56 mm (1.4")
Weight: 130 g
Rec. PCB hole diameter: 1.5 mm
Static resistance of each primary half (4 -- 1&6 or 3 -- 2&5 respectively): 20 W
Static resistance of each secondary: 20 W
Secondary leakage inductance (secondaries in series): 0.6 mH
No-load impedance: >2 kW @ 50 Hz, +20 dBU
Optimum source impedance: Minus 40 W
Balance of output (according to IRT, source < 10 W , load 600 W):    > 65 dB
Maximum output level before saturation (load 600 W): + 24 dBU @20Hz
Frequency response (@ 10 dBU, source < 10 W, load 600 W): 20 Hz -- 60 kHz +/- 0.3 dB
Voltage loss across transformer (at midband with 600 W load): 1 dB
Isolation between primary and secondary windings / between
windings and core: 4 kV / 2 kV

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