The Amplimo 100PP2K2S is a wide bandwidth toroidal tube output transformer for push-pull amplifier designs, rated at 100 W with a 2.2 kΩ primary impedance and 4 Ω / 8 Ω secondary taps.
Highlights of the Amplimo 100PP2K2S
- 100 W nominal power rating for push-pull tube amplifier output stages
- 2.2 kΩ primary impedance with 0, 4 Ω and 8 Ω secondary connections
- Wide -3 dB frequency bandwidth from 5 Hz to 175 kHz
- 35% ultra-linear taps for compatible tube amplifier circuits
- Toroidal construction with clamp and washers included for mounting
- Compact 113 mm x 53 mm format with 2.2 kg weight
Product details Amplimo 100PP2K2S
Amplimo 100PP2K2S Wide Bandwidth Toroidal Tube Output Transformer 100 W 2.2 kΩ
The Amplimo 100PP2K2S is a dedicated audio component for push-pull tube amplifiers. With a 2200 Ω primary impedance and 0, 4 Ω and 8 Ω secondary connections, it is suited to amplifier builds that require a robust output transformer with flexible loudspeaker matching.
Its wide bandwidth performance supports demanding audio designs, with a -3 dB frequency range from 5 Hz to 175 kHz. The power bandwidth starts at 28 Hz, while the transformer’s specified electrical values include 670 H primary inductance, 3.8 mH primary leakage inductance and 345 pF primary capacitance.
For ultra-linear tube circuits, the 100PP2K2S provides 35% UL taps. The turns ratio is 23.5 for the 4 Ω output and 16.6 for the 8 Ω output, giving builders the necessary connection options for common speaker impedances. Only one secondary tap should be used at a time.
The toroidal package measures 113 mm in outside diameter and 53 mm in height, with a weight of 2.2 kg. It mounts using a toroidal clamp and washers, making it practical for integration into custom amplifier chassis and other suitable amplifier accessories assemblies.
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