Riverdweller

I explain how I know what I know about harmonics, introduce you to some people who think I'm crazy and explain why Phase Angle is so important to the Harmonic Signature.

How to (and how NOT to) make sine waves.

A look at how I discovered how harmonics are created.

Embrace the FFT, it's easy to understand despite the fact it's based on advanced math.

Embrace the FFT, it's easy to understand despite the fact it's based on advanced math.

I attempt to answer a question posed by a viewer about AC coupling.

Some people are still promising free energy from harmonics. They are idiots.

John Dunn at EDN Asia liked my question about the Smith chart of a quartz crystal and wrote an article on it: https://www.ednasia.com/use-a-smith-chart-for-component-characterizations/

Some smartass wants to challenge me on electronics, that's fine. What does a Quartz Crystal look like on a Network Analyzer displaying a Smith Chart?

A bit of history on the Schlumberger EXA mixed signal tester when I was at Intel at Ronler Acres in Hillsboro Oregon.

Some say you only need 9 harmonics, some say 10, I say 50 is a good start, we can talk about it more after that.

I explain a little more about Complex numbers when used with an FFT and I recount my seven months at Tektronix.

I tell how I trolled Stack Overflow by giving them a problem they can't solve without using the Bullard Laws Of Harmonics and I explain one of my greatest relationships with the folks at Raytheon.

KTVU Oakland news segment on Semicon West in 2000. Features Dan Bullard doing a demonstration on the Credence Quartet.

I tell how I trolled Stack Overflow by giving them a problem they can't solve without using the Bullard Laws Of Harmonics and I explain one of my greatest relationships with the folks at Raytheon.

Most software tools have a very limited lifespan, Excel is an exception, that's why I embrace it.

I explain why I was fired from Applicos, I was "caught" defending the father of Silicon Valley. And I give you a taste of Mahoney, another genius in the electronics industry.

A plea to all of you who practice electronics, don't let Coherent Sampling die, I can't keep telling you how great it is forever, do your part, learn it, practice it and preach it. Watch MY LEFT side at 4:12, a fish jumps behind me.

After fighting with the idiots on Stack Overflow I explain how harmonics can be caused by a real device failure in a Microcontroller DAC output. This harkens back to the early 2000s, so don't look for this uC on the market now, but at the time it was a big deal.

Two stories about tester issues from my time in California.

When somebody tells you he has a problem that nobody can solve, maybe your the ONLY person who can do it.

An explanation of how the "Harmonic Signature" is controlled by the angle where the distortion happened.

I am the only person on the planet who can work out the phase angle where a distortion impacts a sine wave. Why does it matter? Because the angle controls the Harmonic Signature. Here is the link to the article. https://www.linkedin.com/pulse/can-excel-simulations-trusted-dan-bullard/

I am the only person on the planet who can work out the phase angle where a distortion impacts a sine wave. Why does it matter? Because the angle controls the Harmonic Signature. Here is the link to the article. https://www.linkedin.com/pulse/can-excel-simulations-trusted-dan-bullard/

I address some of YOUR comments here.