Amplimo 50PP4K0G Output Transformer Push-Pull 55 Watt | 4,5 kΩ

Highlights of the Amplimo 50PP4K0G

• Wide bandwidth toroidal tube output transformer
• 4 kΩ primary impedance with 0, 4, 8 and 16 Ω secondary taps
• 50 W nominal power handling
• Frequency bandwidth of 8 Hz to 167 kHz at 1 mW
• Power bandwidth from 50 Hz at 50 W
• Compact 91 mm x 44 mm body with 1.0 kg weight

Product details Amplimo 50PP4K0G

Amplimo 50PP4K0G Wide bandwidth toroidal tube output transformer.

The 50PP4K0G is designed for tube amplifier applications where a push-pull output transformer with a 4 kΩ primary is required. Its toroidal construction makes it a focused choice among specialist audio components for valve-based output stages.

With a frequency bandwidth of 8 Hz to 167 kHz at 1 mW and a power bandwidth starting at 50 Hz at 50 W, this transformer is built for wideband audio performance. Key electrical values include 465 H primary inductance, 3 mH primary leakage inductance, 530 pF primary capacitance and 49 Ω primary DC resistance.

The secondary side provides 0, 4 Ω, 8 Ω and 16 Ω connections, giving flexibility for common loudspeaker impedances. Use only one secondary tap at a time to ensure correct operation and loading.

The transformer measures 91 mm in outside diameter and 44 mm in height, with a weight of 1.0 kg. Installation is supported by toroidal clamp and washer mounting hardware, making it suitable for clean integration into custom amplifier chassis designs.