Experiments, inventions, patents, …
WARNING: Strobe and FLICKER! If you are sensitive to flicker or have a seizure disorder DON’T WATCH THIS VIDEO. Contains flashing and flickering strobe LEDs. Please watch the other videos in this series first….
The Hickok moving coil meter is calibrated against Ohm’s Law using a known resistance and a regulated power supply. The measurement is compared with that made using the cheapo CenTech DMM (on sale at…
Hi all This my first replication of the Rosemary Ainslie circuit as per described on her last paper. I ordered some of those IRFPE 40 mosfet because they are high voltage and low rds(on),…
Solar 18650 battery charger, with 5.1v 1A USB power supply. Charging board – tp4056 – More info here – http://www.candlepowerforums.com/vb/showthread.php?345500-Review-of-Measurement-on-Charger-module-with-TP4056-controller Note I used a different board than the one in the link, which uses…
Presenting a crystal cell created by John Bedini. Phenomenal cell to say the least. Everyone should try it because it indeed works and works very well. Performance in my case is 20ma at 0.07…
Here’s a Quick and Dirty Zener Diode test and identification method. You could do it with an ordinary voltage regulated supply as well, with an inline sensitive milliammeter to see the current so that…
Please watch the first one first. The 9v bias battery is removed and the Function Generator is substituted in its place. The light bulb is shown to light just like it did with the…
As long as the function generator’s output is sitting above or on top of the battery voltage, the FG can charge the battery, even while the load is powered, and even though the FG’s…
The Dim Bulb Test (no audio) All batteries were charged with an automatic automotive battery charger until it indicated that they were fully charged. No load voltage after settling was 13.15 -13.20 volts each….
A simple basic hookup, Tar Baby’s “usual suspects” engaging the Tek 4034 Digital Phosphor Oscilloscope. Upper trace, yellow, is across the 0.25 Ohm CVR. The purple trace is on the battery terminals, directly, plus…