Re: Wireless transmission of power,

["Tesla list" <tesla@xxxxxxxxxx>]

Original poster: "Mike" <induction@xxxxxxxxxxx>

Hi Ed,
            Wow! You must have rounded a number someplace, I used your 
total C and got 8.0002 Hertz. Throwing such large values at my program (I 
like RFS, an old DOS program liked by many a broadcast CE) may have 
confused it a bit, I got a Q of .00041775, oh well!

----- Original Message ----- From: "Tesla list" <tesla@xxxxxxxxxx>
To: <tesla@xxxxxxxxxx>
Sent: Thursday, March 17, 2005 6:29 PM
Subject: Re: Wireless transmission of power,


> Original poster: Ed Phillips <evp@xxxxxxxxxxx>
>
> Original poster: "Lau, Gary" <gary.lau@xxxxxx>
>
> This may be beside the point, but how the HECK do you build a secondary
> to resonate at 8 Hertz?  What size topload?  Please give details beyond
> "I hacked my secondary in half..."
>
> Gary Lau
> MA, USA"
>
> Here's my design:
>
> Cylinderical coil
> Resonant frequency = 8 Hz
> Coil diameter = 1000 feet
> Coil length = 2000 feet
> Top load is sphere of 1000 feet diameter, C =~ 6600 uufd.
> Distributed C =~ 15100 uufd
> Total C =~ 21700 uufd
> L = 18,238 henries
> Wire size = #10 (0.1 inch dia)
> Wire length = 38,340,000 feet
> Wire weight = 1,219,247 pounds
> AC resistance = 38,298 ohms
>
> Increase wire diameter to 1 inch
> Wire weight = 121,924,700 pounds
> AC resistance = 382.98 ohms
> Winding factor =~ 0.53
>
> Quite a coil and top load!  (Way, way bigger than Wardenclyffe!!!)
> Tesla's world power system had a top load consisting of two concentric
> spheres, one grounded, of the diameter of the earth.  I'll give the
> design of that coil some other time.
>
> Ed
>
> Ed