DVD Team for Electrical Calculations Training Library, 2017 NEC

Boyd Bindrup

Electrical Contractor/Instructor
Ogden, UT

Boyd launched his electrical career at age 12 by working for his father’s company during the summers and earning $0.75 per hr. He began his electrical apprenticeship in Ogden Weber Technical College but left to attend Salt Lake Community College for his last two years of training. After finishing school Boyd obtained his journeyman license and, 2 years later, his Master Electrician license.

In 1994 Boyd saw an ad for a position as an instructor with the same institution he had left. With no prior training as an instructor, he said to himself, “I know what I would like to do to improve on the training I had received.” With that thought in mind, he applied for the job. Since then Boyd has taught over 1,200 classes and trained thousands of electricians. He’s devoted to learning and passing on his knowledge to current and future electrical professionals. Boyd is passionate about the direction of the profession and is active politically in the industry. “Electrical professionals need to be involved in all aspects of electrical, if it has wires we need to be doing the work.”

Boyd and his wife Rebecca reside in Ogden Canyon and are parents to six children. He loves Rock climbing, Snow & Water skiing and doing CrossFit.


Dennis Carlson

Master Electrician/Training Specialist
Steamboat Springs, CO

Dennis Carlson has been in the electrical trade for over 35 years, and has held the positions of Project Superintendent, Field Engineer, Start-up-Coordinator, General Fore¬man, Foreman, Journeyman, and Craft Training Manager. He’s certi¬fied with NCCER as a Master Trainer, and is a professor for Victoria University, Australia as a Master Trainer. In April 2013, he graduated from Salem International University with a Bachelor’s degree in Business Administration.

Dennis is a Master Electrician/Contractor licensed in several states, and a member of the NFPA and IAEI. He’s trained thousands of elec¬tricians in the last 25 years using Mike Holt’s material and has been working with Mike for the last 16 years on his Exam Prep courses.

Dennis and his wife, Cindy, live in Steamboat Springs, Colorado, where they’re both active in enjoying God’s great outdoors, their church, and the community. They have two children, Brandy, a graphics arts designer who lives in Greeley Colorado, and Josh who is an electrical estimator in Denver Colorado. “Life is too short to do only one thing so you have to prepare yourself for the next challenge. Never stop learning and striving to achieve those goals that you have.”


Mark Cook

Master Electrician/Technical Training Consultant,
Neenah, WI

Mark joined Faith Technologies in 2015 as a Technical Training Consultant, and has been in the electrical trade since 1978. He completed his apprenticeship through Associated Builders and Contractors (ABC) and earned his journeyman certification in 1987. Mark spent time in the industry working in both high-voltage and low-voltage commercial and industrial businesses, and owned his own business after earning his Masters license in 1994.

He was also an adjunct instructor for Independent Electrical Contractors (IEC) of AZ while teaching for the Electric League of Arizona. He currently writes monthly Code articles for a trade publication circulated in Arizona.

Mike Culbreath

Master Electrician, Graphic Illustrator, Mike Holt Enterprises, Inc. Alden, Michigan

Mike Culbreath devoted his career to the electrical industry and worked his way up from apprentice electrician to master electrician. He started in the electrical field doing residential and light commercial construction, and later did service work and custom electrical installations. While working as a journeyman electrician, he suffered a serious on-the-job knee injury. As part of his rehabilitation, Mike completed courses at Mike Holt Enterprises, and then passed the exam to receive his Master Electrician's license. ln 1986, with a keen interest in continuing education for electricians, he joined the staff to update material and began illustrating Mike Holt's textbooks and magazine articles.

Mike started with simple hand-drawn diagrams and cut-and-paste graphics. When frustrated by the limitations of that style of illustrating, he took a company computer home to learn how to operate some basic computer graphic software. Becoming aware that computer graphics offered a lot of flexibility for creating illustrations, Mike took every computer graphics class and seminar he could, to help develop his computer graphic skills. He's now worked as an illustrator and editor with the company for over 30 years and, as Mike Holt has proudly acknowledged, has helped to transform his words and visions into lifelike graphics.

0riginally from south Florida, Mike now lives in northern lower Michigan where he enjoys hiking, kayaking, photography, gardening, and cooking; but his real passion is his horses.

Mike loves spending time with his children Dawn and Mac and his grandchildren Jonah, Kieley, and Scarlet.

Brad Darnell

Electrical Engineer/Designer
Indianapolis, IN

Brad Darnell is an Electrical Engineer and brings nearly 50 years of experience in the electrical trade. He started as an apprentice electrician in Albuquerque, New Mexico after serving in the U.S. Marine Corps during the Viet Nam conflict. He gradually worked his way up and after four years was able to pass the New Mexico journeyman exam. Shortly thereafter, he relocated to Indiana, where he now resides.


Brad is currently licensed as a Master Electrician or Electrical Contractor in 25 states and continues to pursue licensing in additional states. In his role as the principal electrical designer for a nationwide MEP firm, he’s also the primary license holder for his firm. Brad has designed electrical systems for small commercial projects as well as projects in excess of 1.5 million square feet. He’s also designed several medium-voltage substations and distribution systems.


Brad has taught third-year apprentices in the local ABC chapter and is a NCCER Certified Instructor. An avid golfer, he and his wife live in a suburban community just outside Indianapolis and, when not working in the yard, he can usually be found on the golf course.

Ken DeHart

Contractor/Administrator/Journeyman/Business Owner
Shelton, WA

Ken DeHart was 24 when he started his career as an electrical trainee and quickly discovered he had a real passion for the trade. Soon he became the "Go-to guy" for electrical troubleshooting, installations, NEC and Washington Administrative Code questions.
Dedicated to electrical safety, understanding the code and to his family, Ken worked full time and cared for his wife while she was disabled for 5 years due to cancer and multiple surgeries. Now in remission, they’ve opened their own electrical contracting business.  Ken’s wife also has her trainee license and works with Ken on the jobsite often. The two believe that the safety of so many depends on us being knowledgeable. We owe it to our customers, ourselves, and our children to be better and to know more every day.
Ken studied Mike Holt’s Ultimate Training Library diligently and passed the Washington State Administrator Test the first time with an overall 90%. He was later told that the test has a pass rate of only 3%.
When Ken isn’t working, or studying he is usually with his wife, Sarah, and their three active daughters Alexandria, Lydia and Clara enjoying the beauty of the Pacific Northwest while hiking, climbing or kayaking.

Daniel Brian House

Master Electrician / Instructor
Technical Director - Mike Holt Enterprises

Brian House is a high-energy entrepreneur with a passion for doing business the right way. He’s a licensed unlimited electrical contractor having worked throughout the southeast United States since the 1990s. From single family homes to industrial manufacturing he’s enjoyed experiencing all aspects of the trade. Whether it was service work, designing energy-efficient lighting retrofits, biomass powered generators or installing solar PV systems, Brian has first-hand experience with the ups and downs of electrical contracting and a vision for its future.

Since 2000, Brian has enjoyed teaching at seminars and apprenticeship classes. He joined the Mike Holt video teams in 2010 and in 2014 joined the Mike Holt staff as the technical director. He continues to teach seminars and is actively involved in developing and teaching apprenticeship classes.

Brian and his wife Carissa have shared the joy of four children and many foster children during 19 years of marriage. When not mentoring youth at work or church, he can be found racing mountain bikes with his kids or fly fishing on Florida’s Intracoastal Waterway.

John Mills

Master Electrician/Electrical Instructor Premier Electrical Company/Dade County School Board Miami Springs, Florida

John Mills is an instructor for Mike Holt Enterprises, Inc. and is a Certified Electrical Contractor, Certified Inspector, Plan Reviewer, and CBO. John started in the electrical trade in 1980 as a helper and attended an ABC Apprenticeship Program, then worked his way up to Master Electrician. John has been an instructor for 30 years, teaching master and journeyman exam preparation courses and Florida State certification courses.

John resides in Miami, Florida with his wife Corina and their four sons. John’s hobbies are working with wood and metal. He makes wooden bowls and furniture from trees that have been cut down. He enjoys making things for his children as well as fishing, family picnics, and vacations with his family.

Eric Stromberg

Electrical Engineer/Instructor  Los Alamos, NM

Eric is a Professional Engineer with a long background in the electrical industry.  He started as an apprentice electrician and worked his way up to being a journeyman.  After graduating from the University of Houston with a degree in Electrical Engineering, he worked in the life safety field, installing life safety systems in high rise buildings.  He went to work for Dow Chemical where he engineered major industrial systems in several countries, in addition to managing an electrical engineering department and electrical inspection department. 

Eric has also served on the electrical advisory board to the Texas department of licensing and regulation for 8 years, as well as the exam board for electrician licensing.  He has taught exam review courses for the Professional Engineering exam, was a certified continuing education instructor for electrician licensing, as well as taught electrical courses at a local college.  Eric currently teaches Code classes, in New Mexico, for electrician licensing.

Eric's oldest daughter, Ainsley, teaches for an international school in Zurich, Switzerland where she lives with her husband Nathan.  His son Austin served in the Air Force. He is a pilot and the owner of an aerial photography business and is graduating this year with a degree in Aviation logistics.  His youngest daughter, Brieanna, is a singer/songwriter in Austin, Texas.  

Mario Valdes

Electrical Inspector/Plans Examiner
Miami, FL

Mario Valdes Jr. is a electrical inspector and plan examiner for an engineering firm that does private provider and municipal support services. He started his career with his father who owns an electrical contracting company at 16 years old, then worked himself up to a master electrician. Once he got Florida state contractor’s license he ran the company as a project manager and estimator. Furthermore Mario’s passion for the national electrical code led him to get his inspector and plan review certifications to embark in a new journey as an electrical professional in the code compliance industry.

Mario is a goal setter and plans to become a certified instructor by the end of this year. He’s worked in very complex projects such as hospitals, casinos, hotels & multi-family high rise buildings bringing him a diverse background experience in the electrical field. He's a member of the IAEI, NFPA, & ICC and believes by staying active in these organizations he will be ahead of the game with cutting edge knowledge pertaining to safety codes, he enjoys participating in meetings to give his input on certain topics. When not immersed in the electrical world he enjoys fitness training because a healthy mind requires a healthy body.

Mario resides in Miami Florida with his beautiful family which includes his wife and 2 year old son and they enjoy family trip getaway to Disney world and other amusement parks.