General purpose transformers

General purpose audio transformers for ground isolation, for splitting and for balanced-to-unbalanced conversion.

General properties:
Many different connection alternatives possible
Moderate copper resistance (50 Ω per section typically)
Medium signal level capability (Max 10 dBU at 50 Hz per section typically)
Excellent magnetic and electrostatic shielding
High mu cores (mu metal or amorphous strip core)

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Isolation transformers

TypeTurns RatioSize LxWxHMax PrimlevelApplications / Comments
LL15271+1 : 1+138x24x17+16 dBUThe "standard" problem solver. Ground isolation, MS decoding, splitting 1 direct + 1 isolated outputs. Mic input 200:800 Ω.
LL1527A1+1 : 1+138x24x17+16 dBUAs LL 1527. Secondary shields available individually on connector pins.
LL1527XL1+1 :1+138x24x20.5+19 dBUAs LL1527, but with + 3 dB level capability compared to the LL1527.
LL1532
1+1 : 228x17x15+10 dBUA small size audio transformer. For isolation and microphone input (200:800 Ω).
LL15701+1 : 1+138x24x17+16 dBUSplitting 1 direct + 1 isolated outputs. Extra wide bandwidth. Microphone input (200 : 800 Ω).
LL1570XL1+1 : 1+138x24x20.5+19 dBUAs LL1570, but with + 3 dB level capability compared to the LL1570.
LL1588 1+1 : 1+147x28x24+28 dBUHigh level isolation applications 1:2 microphone input. Phase splitting.
LL16841+1 : 1+142x28x22+25 dBUAmorphous core version of LL1588. High level isolation applications 1:2 microphone input. Phase splitting.
LL79021+1+1+1 :1+1+1+166x32x21+28 dBUHigh level high quality general purpose transformer for very demanding applications. "When only the best is good enough".


Splitting transformers

TypeTurn RatioSize LxWxHMax PrimlevelApplications / Comments
LL1581XL1+1 : 1+138x24x20.5+13 dBU (Prim in parallel)Splitting 1 direct + 2 isolated outputs. Very high immunity to external magnetic fields and to large ground differences.
LL15831 : 1+128x17x15 +8 dBU Splitting 1 direct + 2 isolated outputs. Small size mic. level transformer with the same excellent noise immunity as the LL1581XL.
LL79041+1: 1+166x32x21 +23dBU (Prim. in parallelVery high level splitting transformer for 1 direct + 2 isolated outputs. Very high immunity to external magnetic fields and to large ground differences.
LL15901 : 1+1+147x28x23+13 dBUSplitting1 direct + 3 isolated outputs.

Transformer DIN unit

Most of the transformers above can be mounted in our DIN housing for easy onsite installation.

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