About Us

Mercotac® Inc. was founded in 1978 to manufacture unique, high quality, and low-cost brushless slip rings.

Company History

The first brushless slip ring was created in the 1960s to improve the sound of the Leslie Organ Speaker, known as the "Pipe Voice of the Electric Organ". Don Leslie, the inventor and manufacturer of the speaker, needed a rotating electrical conductor for a connection to the spinning loudspeakers. However, his many attempts to use traditional slip rings resulted in crackling sounds when playing music. To solve this problem, brothers Don and Bob Leslie collaborated to develop a brushless slip ring that provided a noise-free connection and high-fidelity sound. Seeing the potential of this new type of slip ring for other applications, Bob Leslie founded Mercotac in 1978. The company still manufactures Mercotac brushless slip rings to this day in California, USA and has expanded its product line to meet the needs of a wide range of applications.

Don and Bob about us, Leslie Speaker Overlay

Bob & Don Leslie

Mercotac in Modern Times

At Mercotac, we are continuously innovating to provide our customers with the highest quality products. We utilize the latest equipment available and time-tested quality control measures to ensure reliable products. Fortune 500 companies in the USA and thousands of companies around the world purchase Mercotac products for their slip ring needs. To service our customers worldwide, Mercotac supports a network of approved international distributors.

Our Mission

Mercotac Inc. is dedicated to providing long-lasting, superior products which are stocked and delivered on-time. We support modernization, innovation, and creativity, while maintaining our commitment to high quality and competitive pricing for our customers. We are also committed to promoting a healthy environment and demonstrating sustainable practices. This includes our recycling program and the use of solar energy at our facility, which help to reduce our carbon footprint and preserve natural resources.

Assembly of Mercotac Slip Ring

What can we help you with next?

Learning Center Rotational Characteristics

How to Order Mercotac® Products: Order directly from Mercotac from within the USA, or through an authorized distributor if outside of the USA.
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Learning Center Slip Ring

Find Which Slip Ring You Need: Replace your brush or precious metal slip ring with superior Brushless Slip Rings from Mercotac.
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Learning Center Products

Frequently Asked Questions: Learn about the benefits of Mercotac products. We strive to answer all of your brushless slip ring questions.
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