The 845 tube is one of the most iconic power triodes in the history of hi-fi audio. Originally developed in the 1930s for industrial and radio transmission use, it has become the triode of choice for high-power single ended amplifiers, thanks to its exceptional linearity and ability to deliver over 20 watts in class A. Its imposing structure, featuring a graphite anode and directly heated filament, provides a unique sound signature — warm tone, natural dynamics, and a transparency that few other triodes can match.
Immerse yourself in an unprecedented sonic experience with our SE6K-845 single ended audio transformer, designed to excel with 845 tubes. With a 6k ohm primary impedance and selectable 4/6/8 ohm secondary outputs, this transformer delivers a rich, detailed, and enveloping sound, maximizing the tonal and dynamic qualities of the legendary 845.
Main Features:
- Optimized Design: Specifically conceived for 845 tubes, our SE6K-845 transformer ensures perfect synergy with your amplifier, delivering a sound full of harmonics and detail.
- Configuration Flexibility: Thanks to secondary outputs covering all common impedances, you can adapt the transformer to your specific setup and extract the best performance from your audio system.
- Quality Construction: Built with premium materials and solid craftsmanship, this transformer is made to last, providing outstanding sound for years to come.
Engaging Experiences:
To fully explore the potential of our transformer, we recommend checking out an amplifier project that makes the most of its capabilities:
- 845 and 6EM7 Tube Amplifier Project: Discover how this design uses the SE6K-845 single ended transformer to enhance the performance of 845 and 6EM7 tubes, offering an extraordinary and immersive listening experience.
In conclusion, our SE6K-845 single ended audio transformer for the 845 tube is the secret ingredient to transform your audio system into a true oasis of sound. Whether you’re building a new amplifier or upgrading an existing one, this transformer will accompany you on a musical journey like no other.
When you purchase output transformers together with other components such as chokes, power transformers, or any other products from our site, you will benefit from a substantial quantity discount.
| Model SE6K-845 | ||||||||||||
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(*) It can also be used with other compatible tubes. |
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Dimensions Reference

