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A Timeless Journey: Tim Mellow's Vintage Amplifier Design Inspires English Acoustics' Innovation

Andrew Marks
Step into the world of audio engineering and embark on a timeless journey with Tim Mellow, our esteemed Design Authority at English Acoustics. While Tim's DIY 25W OTL Tube Amplifier has garnered accolades and remains a captivating design, his innovative know-how has evolved to shape the latest range of English Acoustics' cutting-edge amplifiers.

Technical Deep Dive: Building Your Own 25W OTL Tube Amplifier. In a world dominated by mass-produced audio equipment, there's something undeniably captivating about crafting your own amplifier. Tim Mellow's design brings together the best of both vintage and modern technology, creating an exceptional DIY project for audio aficionados. From understanding the intricate circuitry to selecting the finest components, this technical journey is an audiophile's dream come true.


Front View of Tim's original OTL amplifier that he built in 2014.

Powerful OTL Technology: Embracing the Advantages Tim's 25W OTL Tube Amplifier showcases the power of Output Transformer-Less (OTL) technology, an engineering feat that eliminates the need for heavy transformers. By directly driving the loudspeakers without output transformers, the amplifier achieves improved linearity, reduced distortion, and enhanced frequency response. This cutting-edge approach ensures a transparent and pure sound reproduction, taking your audio experience to unprecedented heights.


Transcending Limitations: Tim's Design Philosophy As a leading figure in the audio industry, Tim Mellow's design philosophy centers on achieving the ultimate audio performance while embracing simplicity and ingenuity. His approach is akin to cooking with the freshest ingredients; crafting amplifiers that require no artificial embellishments or additives. The result is a captivating musical experience that transcends the limitations of traditional audio designs.


DIY Empowerment: Unleashing Your Audio Creativity Building the 25W OTL Tube Amplifier isn't just about assembling electronics; it's an immersive journey that empowers you to unlock your audio creativity. Tim's meticulous instructions and detailed insights will guide you through each step, providing a profound understanding of audio design and electronic engineering along the way. Unleash your potential and take control of your audio destiny with this awe-inspiring project.


Embrace the Challenge: A Technical Feast Awaits For the technically hungry audience, Tim Mellow's DIY 25W OTL Tube Amplifier is a feast of knowledge and expertise. Dive deep into the intricacies of audio engineering, revel in the art of circuit design, and discover the joy of crafting an amplifier that delivers unmatched audio prowess. As we celebrate the relentless pursuit of sonic excellence, embrace the challenge and embark on a technical journey that will leave you spellbound.

Tim's novel circuit has a minimal number of components in the signal path

As you explore the realm of audio engineering with Tim Mellow's DIY project, we invite you to unleash your passion for sound, embrace innovation, and create a musical masterpiece like no other. Feed your technical hunger and delve into the world of tube amplifiers, as we continue to redefine the art of audio fidelity at English Acoustics. Let the journey begin.


Find our more in Tim's in-depth technical article, published in February 2022 edition of Audio Express magazine: https://audioxpress.com/article/your-can-diy-a-25w-otl-tube-amplifier and discover how you can build your own OTL amplifier

1 Comment


Guest
Aug 14, 2023

Dear Tube-Audio-Friends, Having worked with the 6C33 in the past, the two filament pins do get really hot. This causes, after a while, little cracks in the glas-pearls around specific around these two pins. To avoid an air-leak, common with the 6C33, I have added a mineral oil with a high viscosity around these pins to avoid any air intake. . Resulting in a 25 years trouble free listening. This especially where I have seen many 6C33's in Italy all with a lost vacuum. I am sure hat this tip will help your OTL customers to enjoy their amp's for a lifetime or even longer. With Best 6C33 Regards

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