Join me as I complete the Bi Color (3000K – 5600K) 177 LED Photo Light. In this installment I install the MOSFETs, complete the controller, install it in a case, and test the finished product. https://youtu.be/6_jq1z0-OyY If you enjoyed that, then please hit that thumbs up button and subscribe so you wont miss any new … Continue reading Let’s Build: Dual Color LED Photo Light – Part 2 →

Join me as I build a Bi Color (3000K - 5600K) 177 LED Photo Light. In this installment I define  a few simple requirements, work on the design, build the LED panel, and start on the controller. https://youtu.be/27D3NgKp0UQ If you enjoyed that, then please hit that thumbs up button and subscribe so you wont miss … Continue reading Let’s Build: Dual Color LED Photo Light – Part 1 →

I love my Raspberry Pi 3 both as a Linux desktop machine and as a Commodore Amiga Emulator (especially classic games like “The Secret of Monkey Island”) but I’ve always found it a bit annoying to have it sliding around my desk every time I move a cable. When I saw a Rosewill mini tower … Continue reading Put a Raspberry Pi 3 Model B in a Mini Tower Case →

In this installment we complete the project and test it. See the video below. https://youtu.be/sp-BAHffKyM Well that's it for this project. Stay tuned for the next one. If you found it useful, then please like, share, and subscribe. Cheers Dominick

In this installment we'll wire up the six rotary switches. Each switch will be wired with 9 resistors so that we can select between 0 - 9 for each digit. Rather than try to describe the process with text, I'll let the video guide you through the wiring process. https://youtu.be/4H5iBpNmsZk Now just repeat that for … Continue reading Lab Resistor Substitution Box – Part 4: Wiring the Switches →

Look what I’ve got... The parts for our Resistor Substitution Box are in.  I had two issues with the parts order, both related to the knobs. When the knob order arrived from Amazon, the envelope was empty. It was completely sealed all the way around, no rips or tears, but there was nothing in it. … Continue reading Lab Resistor Substitution Box – Part 3: Drilling the Front Panel →

Now that we have a completed design (see Lab Resistor Substitution Box - Part 1: Design), we need to select appropriate components so that we can begin building. First, we'll define some basic parameters (specifications)  that our components need to meet. Don’t order the knobs I recommend, they do not fit.  They should according to … Continue reading Lab Resistor Substitution Box – Part 2: Component Selection →

Since our first few lessons covered resistors, and in at least one case demonstrated the utility of having a Resistor Substitution Box, that's what we're going to build for our first project. https://youtu.be/k5Fvy84lwG4 Introduction One of the most useful pieces of equipment in a hobby electronics lab is a good quality resistor substitution box. As … Continue reading Lab Resistor Substitution Box – Part 1: Design →