Description
Line Input Transformer VTXLIN4
2 : 1+1 10kΩ 13dBu
High performance Line Input Transformer VTXLIN4 – Used in audio systems to interface line-level signals with the input stages of amplifiers, mixers, or other equipment.
Its primary purpose is to;
- optimise signal transfer
- provide electrical isolation
- minimise noise and interference in audio systems
Transformer Data Sheet – Click to open and DOWNLOAD
- Line input transformer
Input 21dBu max. (@ 50Hz) <0.5%THD
Frequency response +/-0.25dB (16Hz – 60kHz)
Hi-pot, primary to secondaries: 500VDC
Windings to screens+can: 500VDC - Fitted with multiple electrostatic screens
Low distortion Mu-metal core
Mu-metal screening can reduces electrical noise by up to 30dB
Operating temperature range: 0 to +70 C
Storage temperature range: -25 C to +120 C
Mass = 0.055kg
LINE Input Transformer VTXLIN4 Electrical characteristics
Specification (test circuit 1):
Turns ratio: 1 to 1 (series wired)
DC resistance (Ω+/-15%)
Primary (8 – 5): 485
Secondary (series) (1 – 4): 485
Input impedance (Ω): 10.7kΩ (typ.) @ 1kHz
Output impedance (Ω): 1.56kΩ (typ.) @ 1kHz, 600R load
Voltage gain @ 1kHz, -1.4dBu (typ.)
Maximum input @ 20Hz, <1% THD: 13dBu @ 50Hz: <0.5% THD: 21dBu
Insertion loss: 0.8dB (typ.)
- Leakage inductance @ 1kHz (8 – 5) (1/2/3/4 S/C): 14mH (typ.)
Capacitance @ 10kHz, 0.1V:
- Cp – s: 68pF (typ.) or 4pF (typ.) with screen earthed
- Cp – scr: 148pF (typ.)
- Cs1+2 – scr: 124pF (typ.)
Specification (test circuit 2)
Turns ratio: 2 to 1 (parallel wired)
DC resistance (Ω+/-15%)
Primary (8 – 5): 485
Secondary (parallel) ((1+2) – (3+4)): 120
Input impedance (Ω): 10.7kΩ (typ.) @ 1kHz
Output impedance (Ω): 2.68kΩ (typ.) @ 1kHz, 600R load
Voltage gain @ 1kHz, -7.3dBu (typ.)
Maximum input @ 20Hz, <1% THD: 13dBu @ 50Hz, <0.5% THD: 21dBu
Insertion loss: 0.8dB (typ.)
- Leakage inductance @ 1kHz: (8 – 5) (1/2/3/4 S/C) 14mH (typ.)
Capacitance @ 10kHz, 0.1V:
- Cp – s: 68pF (typ.) or 4pF (typ.) with screen earthed
- Cp – scr: 148pF (typ.)
- Cs1+2 – scr: 124pF (typ.)












