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Rane TF 4 Transformer (Discontinued)
Rane TF 4 Transformer (Discontinued)
Rane TF 4 Transformer (Discontinued)
By Rane Corporation

Rane TF 4 Transformer (Discontinued)

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Part #:
TF 4
Model #:
TF 4
Availability: No Longer Available
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For 25 volt audio distribution systems, the Rane TF 4 can be used by connecting the 25V loads between its 70V and 100V taps. This transformer can be used at power ratings much higher than 100 W, provided that the low-cut frequency is moved up accordingly.

Description

For 25 volt audio distribution systems, the TF 4 can be used by connecting the 25V loads between its 70V and 100V taps (green and yellow wires). Thermal resistance of the TF 4 is only 1C/W.

Other creative combinations are possible. For example, the yellow/green pair can drive 8Ω loads near to the amplifier, with the red/yellow pair being simultaneously used for a 70 V system. Depending on loading of the 70 V system, this arrangement presents an impedance between 4 and 8Ω to the amplifier.

The TF 4 Transformers can be used at power ratings much higher than 100 W, provided that the low-cut frequency is moved up accordingly. Since voltage capability doubles with each octave, power capability quadruples each octave.

Features
  • Fully isolated, high performance toroid transformer
  • 100 W 25/70/100 V Transformer
  • Provides flat frequency response within 1 dB from 40 Hz to 20 kHz
  • Insulation materials compatible with surface operating tempertaures > 60°C
  • All materials flammability rated UL94V0

Specifications
Primary DC Resistance Black-White < 500 mΩ
Secondary DC Resistance Red-Yellow < 4Ω, Red-Green < 6Ω
Magnetizing Inductance (Primary) > 1H (1V, 100 Hz)
Leakage Inductance (Primary - Secondaries Shorted) 20 μH
Max Output Power 100 Vrms @ 1 Arms
Average Input Power (For Thermal Dissapation) 30 W
Maximum Power Loss
Dimensions (Diameter) 4.2" (106.68 mm)

DOCUMENTS

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