Simple AM radio using MK484 IC
This is a simple AM radio receiver that use an integrated circuit chip called the MK484 as the main component. This simple radio will run on one AA battery using an earphone. I show…
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Don Smith Device Project Part 19 C: New Driver with L1 and L2 Tank Circuits Complete
Completed the Tank circuit for both L1 and L2, the values are not quite correct for L2, .03uf is what i need, but i accidentally used .3uf 😀 So it should get even sweeter…
Salt water burns: the experiments and results
Experiments by Roy, R.; Rao, M.L.; John Kanzius. The authors have shown that NaCl-H2O solutions of concentrations ranging from 1 to 30%, when exposed to a polarised radiofrequency beam at 13,56 MHz at room…
IT (induction transformer) – " alternatives" 1
search for IT application (underwater lighting, toroids energy transferring); loop attempt, battery slow discharge
Electric OU: Supplement: MOSFETS… How do THEY work???
Up is OFF. That is, when the gate turns ON the mosfet turns ON too, and the DRAIN voltage goes to the negative rail. When the gate turns OFF the mosfet turns OFF too,…
Simple solar inverter + tiny circuit 1.5V driven mains bulb
Based somewhat on a Jeanna’s Light or Lidmotor’s similar circuits, this is a lot smaller inverter than the one from the other day. It fits around the base of the 120V 2W Lights of…
Electric OU: Diode Frequency Response
When is a diode just a diode? When it’s operating at low frequencies. At higher frequencies it takes some time to turn on and to recover, and it also has some capacitance, so it…
Richard Vialle first approach 1
Hi all The user PASCUSER at OU proposed to us some time ago the technology of Richard Vialle.. Richard Vialle proposed to make an experiment , as to bend a copper tubing of exactly…
Orion Delta 3D Printer Review SeeMeCNC + Afina Comparison
The winner of the giveaway was: Yves Baggi https://www.youtube.com/user/ybaggi Here’s a promo code for $40 off the purchase of an ORION 3D Printer. It is valid now through the end of July, 2014. Code:…
Solar Power Pennies
Description of build: Energy from pennies, as semi-conductors 🙂 Take 2 copper pennies, in the USA they must be from before 1982 as later ones have zinc under a copper plating. Place 1 penny…