Editor’s Note: The following post shares an original idea and conceptual write-up sent by Mr. Ike Higgins. The original text and details provided in the communication are published below. Introduction For a little while lately I’ve been trying to come up with something more practical. I started looking for a new idea. I thought about […]
Newly Updated Circuit Projects:
Accurate Monostable Timer Circuit using IC 4538 (CMOS)
This circuit is basically a simple yet extremely accurate push button monostable timer using one half of a CD4538 dual monostable multivibrator IC. It works as a one-shot timer, where one press and release of S1 produces one timed output pulse. This pulse turns ON the BC557 transistor and the LED for around 7 seconds, […]
Solar Gravity Lift System – Renewable Energy Concept
This creative idea is submitted by Mr. Higgins, who always inspires us with his passionate and unique mechanical concepts. In the real world, closed-loop gravity and heat systems run into big limits due to the laws of physics and energy loss, but thinking through these unique designs is still a great way to challenge our […]
Op-Amp Hysteresis Resistor Calculator
Many times you make simple op-amp comparator circuit, but output starts jumping up and down like anything near the triggering point just because of small electrical noise. Relay and microcontroller will get totally confused with this nonsense. Only proper solution is adding positive feedback to make it a Schmitt trigger. But doing paper maths for […]
DIY Contactless HT Spark Tester & LED Timing Light Circuit for Modern Cars
Today I am going to share a very useful and clever circuit diagram sent to me by Mr. August Peterson. This circuit is a non-contact HT spark tester and timing light tool. It is specially designed for modern cars where checking for a spark is very difficult and dangerous for the car electronics. Why Mr. […]
The Bubble Current Machine: A way to harvest energy from gravity
Special thanks to Mr. Ike Higgins for emailing me this article exploring a theoretical concept known as the Bubble Current Machine. Please note that this is presented purely as a conceptual thought experiment and design proposal. In practical physics, pushing air through a submerged nozzle against hydrostatic pressure requires external work equal to (or greater […]