Hammond Transformers for Tube Audio Amplifiers

Hammond Transformer Information

The specs for each Hammond output transformer are listed along with our own supplemental data. We have standardized the listings to make transformer selection and amp design application simpler.

This transformer information appears in print form in our book, The Ultimate Tone Vol. 5 (TUT5), along with details of output and power transformer matching procedures.

Follow these links to transformer classes and other topics:

x-mount Hammond transformersSE Single Ended

PP Push Pull

"Classic" Power Transformers

300-series Universal Primary Classic Transformers

"Classic" Low Power Plate & Filament Transformers

Hammond Plate Transformers

Matching Up Hammond Output and Power Transformers


...see also our Catalogue category Building Supplies

About London Power

London Power was founded in 1990 by Kevin O'Connor, after two decades of research into innovative audio amplification techniques. Kevin is an audio designer, author and speaker, known for his proprietary methodology called Power Scaling, and for his eleven books on audio subjects. Whether you seek amps, kits or information, you'll find useful answers here on not just the "how" but the "why" of audio amplifier design. Please enjoy the information on this site, and don't hesitate to contact us with questions.

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