----- Original Message ----- From: "Jones Beene" <[EMAIL PROTECTED]> To: <vortex-l@eskimo.com> Sent: Tuesday, October 23, 2007 6:23 PM Subject: Re: [Vo]:Re: "Cold" electricity
> Good post, Jed. > > Let me add some new information from DrS: > > Last night he took a Luxton light meter and singled > out one LED and took a measurement. He recorded the > reading and then took that same LED from the circuit > and placed a 1K series resistor to it and connected it > to a variable DC supply. He adjusted until the Luxton > read the same, and then recorded the current. Current > was 23.2mA. Glad I was of some help. > So what is wrong with this? Do any vorts think this > was an inaccurate way to measure (and then to > guesstimate) the power being dissipated in the circuit > when operating? It's accurate enough for the purpose. So what was the voltage, and hence the power V*23.2E-3, per LED, and hence the total power 150 times that? If total is 11W as you seem to suggest below, that's 11/150= 73mW per LED, i.e. about 3V per LED, is this correct? > Now remember he can drive many LEDs with this > circuit-- > the actual limit is unknown, as the more he adds, the > more it seems to "want" BUT catch-22 this is tedious > to do, since matching voltage drop per diode is > necessary. There is too much variation otherwise- to > hold a resonance. He had 1000 LEDs from the initial > shipment and has been able to match 150 of them close > enough to be powered by the circuit (two banks of 75 > in series). > > The low powered AM radio station business nearby is > not a very likely power source. If the near field is > about a 1/3 wave length, taking the broadcast band, > figuring the wave lengths and then the uV per meter > density to get an apparent 11 watts would mean he > could reach out and touch the tower (or climb up a few > feet ;-). Surely the emitted power has been taken into account too, how much is it, and how far is it? > This is looking to me like a non-issue, but YES we all > agree that the next step, when time permits, will be > to take the setup to a remote area with very little > RF. I heard that some people living close to the Eiffel tower manage to derive their electrical heating power from its radio emitters, but it may be a legend. Michel
