I used a 3V .500W Zener diode 1N5225B for it's voltage regulating abilities. Here is a link to a 47s video including schematics, results, and explanations in voice.
The circuit is Vin, a resistor in series with the Vin (330 ohm), and then the 3V Zener diode and a load (resistor) in parallel.
The Vin ranges from 5V to 9.6V. The load ranges from 330 ohm to 3300 ohm to 33000 ohm. The maximum expected voltage "differentiation" (how far the measured results are from the expected results) is .39V.
For the 3300 ohm and 33000 ohm load the expected result is 3V at 9.6V Vin and 2.61V at 5V Vin. The measured results are 3.01 V, 2.58 V, 2.99V, and 2.61V, respectively. Great!
For the 330 ohm load, the results are 2.81 V and 2.16 V.
Why are the measured results so far from the expected results for the 330 ohm load?
https://youtu.be/f6LKJ-PjRwk