45W Push-Pull Output Transformer 8K Ohm | 6P14 Tube Amp

45W Push-Pull Output Transformer – 8K Impedance | 0-4-8 Ohm

Elevate your tube amplifier builds with this premium 45W Push-Pull Output Transformer, engineered for audiophiles and DIY audio enthusiasts who demand clean, accurate signal transfer. Designed specifically for 6P14 (EL84) tube amplifier circuits, this output transformer delivers a well-matched 8K primary impedance with versatile secondary taps at 0, 4, and 8 ohms — giving you the flexibility to pair it with a wide range of speaker configurations.

Whether you're building your first push-pull amp or upgrading an existing design, this transformer provides a solid magnetic core, low distortion characteristics, and consistent frequency response that serious audio builders expect.

Key Features

• Power Rating: 45W — ideal for push-pull 6P14/EL84 amplifier stages
• Primary Impedance: 8K ohms — optimally matched for 6P14 tube operation
• Secondary Output Taps: 0 / 4 / 8 Ohm — compatible with most speaker impedances
• No UL (Ultra-Linear) Tap — pure triode or pentode wiring topology
• Push-Pull Configuration: Balanced signal handling for reduced harmonic distortion
• Low-Loss Core: High-quality laminated silicon steel core for improved bandwidth and efficiency
• Compact & Retrofit-Friendly: Suitable for new builds or replacement in existing amplifier chassis
• Made in Mainland China

Technical Specifications

What Is a Push-Pull Output Transformer?

In a push-pull tube amplifier, two tubes work in tandem — one handling the positive half of the audio waveform and the other the negative half. The output transformer combines these two signals and transfers the amplified audio to your speaker with minimal distortion. Choosing the right impedance match between your tubes and speakers is critical for maximizing power transfer and audio fidelity. Learn more about audio amplifier design principles from the National Institute of Standards and Technology (NIST).

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Frequently Asked Questions

Q: Is this output transformer compatible with EL84 tubes as well as 6P14 tubes?

A: Yes. The 6P14 is the Soviet/Chinese designation for the EL84 tube type. This 45W push-pull output transformer with 8K primary impedance is directly compatible with both 6P14 and EL84 tubes in push-pull amplifier configurations.

Q: What does "No UL Tap" mean for this transformer?

A: UL stands for Ultra-Linear — a wiring mode where a portion of the output transformer's primary is connected back to the screen grids of the tubes. This transformer does not include a UL tap, meaning it is designed for standard pentode or triode-wired push-pull operation. Many audiophiles prefer this for its simplicity and pure circuit topology.

Q: Which speaker impedances can I connect to this transformer?

A: This transformer provides secondary output taps at 4 ohms and 8 ohms (plus a common 0 reference tap), making it compatible with the vast majority of standard home audio speaker loads. Simply connect your speaker to the tap that matches your speaker's rated impedance for best performance.

Q: Can I use this transformer for a single-ended amplifier design?

A: No. This is specifically a push-pull output transformer. Single-ended amplifier designs require a different transformer type with a DC bias air gap in the core. For push-pull 6P14/EL84 amplifiers, this is an excellent choice.