Hi embedded: About 3 or 4 decades ago I spent a couple of years full time studying RF co= ils =20 by winding many and testing them using a Boonton Q meter. http://www.prc68.com/I/Qmeters.html#Boonton160 When I was getting my BSEE and MSEE degrees the textbooks did not cover the= properties of inductors and I ended up=20 buying books with titles containing Terman, Radiotron and Tesla's Colorado = Springs Notebook. The key idea Tesla discovered is that of Q multiplication. In his early ex= periments he had what amounts to an RF=20 transformer, but later when he added a vertical mast made of metal pipe and= insulated with Champagne bottles and added a=20 capacitive top hat (various designs) this capacitance loaded the secondary = and allowed Q multiplication effect to work. =20 Note that a coil operating at self resonance does not exhibit Q multiplicat= ion. PS the photographs showing him near the secondary coil with lightening bolt= s were all double exposures. Q multiplication will increase the voltage but NOT the power. --=20 Have Fun, Brooke Clarke http://www.PRC68.com http://www.end2partygovernment.com/2012Issues.html http://www.prc68.com/I/DietNutrition.html --=20 Date: Sat, 31 Oct 2015 17:00:54 +0200 From: embedded systems Subject: Re: [EE] New video reveals internals of Orbo PowerCube To: "Microcontroller discussion list - Public." Message-ID: Content-Type: text/plain; charset=3DUTF-8 On Sat, Oct 31, 2015 at 10:47 AM, James Cameron wrote: > On Sat, Oct 31, 2015 at 10:26:12AM +0200, embedded systems wrote: >> The weird thing is that works. I've seen for the first time this >> behavior on an old Grunding TV back in 1995 or so. The standby LED >> keep lighting more than one full day with the TV unplugged from the >> power supply. The filtering capacitors alone can't do that. That TV >> had no backup battery... > Did it happen to have an internal or external antenna resonant at a > frequency for which there was a powerful transmitter nearby? ;-) > As long you have RF measurement tools you know the garbage you have nearby...:) Sure you can light a LED from an antenna, but when the LED is connected in the power supply chain of a TV (a very old one in which the high voltage is generated by two thyristors), you can't. I strongly and seriously suggest to review Nikola Tesla patents involving resonance, trying to understand what resonance is in his opinion. There are a few dozens. Other*people with opened and rested minds* are "tariel kapanadze', "akula' and so on. Enjoy at least the idea you don't understand what you see. :) Mail_Attachment --=20 http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .