If you are an audio enthusiast seeking a vintage, authentic sound, the Single-Ended Output Transformer for 6V6 / 6F6 tubes wired as triodes is just what you need. This transformer delivers exceptional performance and unmatched flexibility, and is also compatible with other triodes such as 6BX7 / 6BL7 and the power triode section of the 6EM7.

Power and Precision in a Compact Package

With a maximum power of just 2 watts, this transformer is ideal for 6V6 / 6F6 tubes connected as triodes, offering a rich and detailed sound that recalls the charm of the past. Its 5 k ohm primary impedance and 6 / 8 ohm secondary taps ensure perfect matching with a variety of loudspeaker loads.

Compatibility with a Wide Range of Triodes

Beyond the 6V6 / 6F6 tubes, this transformer is also compatible with double triodes such as 6BX7 / 6BL7, allowing you to create a stereo amplifier with a single 6BX7 and two transformers. It can also be used with the power triode section of the 6EM7, giving you even more versatility and creative options for your audio system.

Explore the Load Line and Design Options

The included load line diagram will guide you through various design possibilities and help you get the most from your audio system.

The Build Process: Exclusive Photos

Discover the construction process of this transformer through an exclusive photo series. Every detail—from wire winding to final soldering—reflects the precision and craftsmanship that define our work.

Performance Testing: Test Bench and Frequency Response Graph

Our transformer undergoes rigorous performance testing. The test bench photo and the frequency response graph showcase the high quality and precision of our audio solutions.

Experience the Magic of Vintage Sound

Don’t be fooled by the modest power rating of this transformer. Explore the vintage, authentic sound of 6V6 / 6F6 tubes and experience a whole new dimension of listening pleasure.

When you buy output transformers together with other components such as chokes or power transformers, you can take advantage of significant quantity discounts compared to unit prices. Check the proportions of these discounts below.

Model SE5K-6V6T
	Type: Single Ended Compatible with tubes: 6V6 / 6V6G / 6V6GT / 6F6 / 6F6GT / VT66 wired as triodes Also compatible with native triodes: 6BX7 / 6BL7 / 6EM7 Primary impedance: 5000 ohm Secondary impedances: 6 / 8 ohm Primary resistance: 404 ohm Max power: 2 W RMS Leakage inductance: 38 mH Frequency response: 20 Hz – 20 kHz –1 dB (*) It can also be used with other tubes.
	Dimensions (mm) L 65 H 77 S 77 F 51 F2 40

To order, contact me by clicking here.

Dimension guide

Are you a vintage audio enthusiast? If so, you’re in the right place. We proudly present our latest product: the Single-Ended Audio Output Transformer for 2A3 Tube, product code SE2K5-2A3. This transformer is an essential component for high-quality sound lovers, designed to meet the needs of the most demanding audiophiles.

This output transformer has been engineered to integrate perfectly into a wide variety of audio configurations. Its multiple secondary impedance options provide unparalleled flexibility, allowing users to tailor their audio system to their personal preferences. Whether you are building a high-fidelity system for your home listening room, this output transformer is the ideal choice to achieve flawless audio performance.

Related Projects and Frequency Response Chart:

To demonstrate the capabilities and practical use of our Single-Ended Audio Output Transformer for 2A3 Tube, we invite you to explore two projects that feature it:

1. Project 1: SB-Luna
2. Project 2: Bowey 2A3 Modding

You can also view the detailed frequency response chart here for an in-depth look at its performance.

Our SE2K5-2A3 Single-Ended Audio Output Transformer represents the very essence of vintage audio excellence. With its impressive technical specifications and unmatched versatility, it is the ideal choice for demanding audiophiles and professional audio designers alike. Invest in sound quality and elevate your audio experience with our high-grade output transformer.

All listed prices are subject to quantity discounts. When you purchase output transformers together with other products such as chokes, power transformers, or any other items on this site, you will benefit from significant savings compared to the unit cost. The frequency response figures were measured at about 1 W RMS with the typical bias current of the tube for which the transformer was designed, and without negative feedback. With even light negative feedback, bandwidth will extend significantly and phase shift will remain very limited within the audible range.

Model SE2K5-2A3
	Type: Single Ended Designed for tube: 2A3 (*) Primary impedance: 2500 ohm Secondary impedances: 4 / 6 / 8 ohm Primary resistance: 40 ohm Max power: 20 W RMS Leakage inductance: 6.7 mH Frequency response: 20 Hz – 30 kHz –1 dB (*) It can also be used with other tubes. These technical specifications outline a premium product, engineered to guarantee maximum sound fidelity. Our output transformer delivers impeccable performance for both delicate, detailed listening sessions and more demanding power and impedance requirements.
	Dimensions (mm) L 85 H 100 S 104 F 68 F2 58

To order, contact me by clicking here.

Dimension guide

If you are seeking sonic perfection in your tube audio system, look no further: our Single-Ended Audio Output Transformer SE2K-EL34/2 is the answer to your needs for uncompromising quality and audio performance.

Designed and built with the utmost care and attention to detail, the SE2K-EL34/2 transformer delivers a superb listening experience with unmatched fidelity. Its 2000 ohm primary and 4, 6 and 8 ohm secondary impedances ensure extraordinary versatility, allowing you to adapt the transformer precisely to the requirements of your audio system.

But the features of this transformer don’t stop there. Its 62 ohm primary resistance and 12 W RMS maximum power guarantee robustness and reliability, while the low 6.67 mH leakage inductance ensures a smooth, distortion-free frequency response. With a bandwidth extending from 10 Hz to 90 kHz at only –1 dB, you can enjoy rich, detailed, and immersive sound that captures every nuance of your music.

What truly sets our transformer apart is its solid build and generous dimensions, which effortlessly handle the lowest frequencies without distortion, offering a truly immersive listening experience. Unlike small, low-cost transformers on the market, ours ensures crystal-clear sound and faithful reproduction that will satisfy even the most demanding audiophiles.

It is no coincidence that our transformer has been successfully used in many projects featured on our website and has received praise and appreciation from a wide community of audio enthusiasts. Join them in experiencing the superior sound quality that only the SE2K-EL34/2 can deliver.

Do not settle for compromises when it comes to sound quality. Invest in our Single-Ended Audio Transformer SE2K-EL34/2 and discover the difference a truly excellent product can make. The sound you’ve always dreamed of is now within reach.

The photos shown are for reference and may not exactly match the product available. Bandwidth measurements are taken in the actual circuit using the specific tube for which the transformer is designed. These measurements are made at about 1 W RMS using the typical bias current of the tube. Once integrated into their respective circuits, introducing negative feedback—especially recommended with pentodes—can significantly extend the bandwidth and limit phase rotation within the audible range.

SE2K-EL34/2
	Type: Single Ended Designed for tube: EL34 (*) Primary impedance: 2000 ohm Secondary impedances: 4 / 6 / 8 ohm Primary resistance: 62 ohm Max power: 12 W RMS Leakage inductance: 6.67 mH Frequency response: 10 Hz – 90 kHz –1 dB (*) It can also be used with other tubes. Click here to view the project and review of an amplifier using this output transformer
	Dimensions (mm) L 85 H 100 S 104 F 68 F2 58

To order, contact me by clicking here.

Dimension guide