Bill Dull

President of Triad Magnetics
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Recent Posts

Chokes vs. Inductors: What's the Difference?

Posted by Bill Dull | February 19, 2021 | 0 Comments

Numerous technologies rely on chokes or inductors to deliver, alter, and filter electrical current. Understanding the difference between chokes and inductors is essential when designing devices and machinery that rely on electrical power. These electrical components each suit specific applications.

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Understanding Audio Transformers

Posted by Bill Dull | February 18, 2021 | 0 Comments

For more than 75 years, Triad Magnetics has provided innovative magnetic solutions for customers around the world. Our extensive selection of specialty magnetic components ranges from power supplies and LED drivers to wall plug-in transformers and high-frequency magnetics. We offer a broad selection of audio transformers for impedance matching, step-up, and step-down operations in audio [...]

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UL 62368-1: The New Safety Standard for ITE and AV Equipment

Posted by Bill Dull | December 14, 2020 | 0 Comments

In December 2020, product safety standards based on IEC 62368-1 will be superseding IEC 60950 and 60065  across the world, including Underwriters Laboratories (UL) in the US. The goal of the new standard is to establish a more universal and clear approach to hazard-based product testing. It replaces two previous standards—60065 for audio/visual (AV) equipment and 60950-1 for information [...]

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UL Listed vs. UL Recognized: What's the Difference?

Posted by Bill Dull | November 2, 2020 | 0 Comments

Underwriters Laboratories (UL) is a globally recognized standards company that works to establish safety guidelines and industry standards for the design, production, and marketing of a wide variety of products and components worldwide, with a particular focus on products manufactured and disseminated in North America. UL is dedicated to the development of more secure and sustainable products [...]

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The Impact of Chinese New Year on Electronic Component Lead Times

Posted by Bill Dull | October 16, 2020 | 0 Comments

In China, one of the most important national events is the Spring Festival. This annual event—also often referred to as Chinese New Year—falls somewhere between the end of January and the middle of February. In 2021, it is set to begin on February 12th.

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How to Enhance Sound Quality with Audio Transformers

Posted by Bill Dull | October 12, 2020 | 0 Comments

At their most basic level, transformers consist of a primary and secondary winding situated around a magnetic core. Audio transformers are used to transmit sound signals from the primary to secondary winding with high accuracy and minimal distortion. Transformers are the most effective solution in many audio applications as they allow for electrical energy to be transferred from one circuit to [...]

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How to Select the Right Transformer Manufacturer

Posted by Bill Dull | June 5, 2020 | 0 Comments

When sourcing a standard or custom transformer, it is essential to choose a quality manufacturer to ensure the product functions as intended. However, given the large number of potential options available, selecting the right one can be challenging. In the following blog post, we provide an overview of some of the key factors to consider when vetting transformer manufacturers to help you choose [...]

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How Does Quality Assurance Impact the Cost of a Transformer?

Posted by Bill Dull | April 7, 2020 | 0 Comments

Many customers believe that the cost of a transformer is limited to the amount that they pay upfront. At a basic level, transformer costs are determined by the time and materials used during the manufacturing process. However, the truth is that transformer costs are impacted by numerous complex factors, particularly when considering the impact on the overall system. 

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An Introduction to Common Mode Chokes

Posted by Bill Dull | February 28, 2020 | 0 Comments

A choke is a magnetic inductor used to block or limit unwanted high-frequency alternating current (AC) while allowing the desired lower frequency direct current (DC) to pass through. The choke acts as a filter for the noise produced by other radio signaling devices, inverters, and unshielded equipment, thereby reducing interference in electrical and electronic devices and systems. 

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Triad Magnetics: Serving the Audio Industry With Small Products That Pack Big Sound

Posted by Bill Dull | December 11, 2019 | 0 Comments

What Is An Audio Transformer? Audio transformers are electronic devices that transmit frequencies within the audio band. They are used in audio amplifier circuits to:

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