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Re: Best sparks (fwd)
---------- Forwarded message ----------
Date: Wed, 8 Jul 1998 12:12:18 -0600
From: terryf-at-verinet-dot-com
To: Tesla List <tesla-at-pupman-dot-com>
Subject: Re: Best sparks (fwd)
Hi Richard, All
Since I use an automatic winder, I usually space wind to some degree. The
coil mentioned has 0.030 inch pitch with 0.020 inch wire (10 mil air space).
I don't know if this is good enough for the suppression effects you and Dr.
Resonance mention.
This effect is really interesting. Probably the lower turn-to-turn
capacitance reduces HF resonance. Since we want to make coils as neighbor
friendly as possible, this observation is very important.
Terry Fritz
At 10:42 PM 7/7/98 -0600, you wrote:
>
>
>---------- Forwarded message ----------
>Date: Wed, 08 Jul 1998 00:00:03 -0400
>From: Richard Hull <rhull-at-richmond.infi-dot-net>
>To: Tesla List <tesla-at-pupman-dot-com>
>Subject: Re: Best sparks (fwd)
>
>
>> Date: Sun, 5 Jul 1998 18:23:45 -0600
>> From: "D.C. Cox" <DR.RESONANCE-at-next-wave-dot-net>
>>
>> to: Terry, Richard, Tesla List
>>
>> snip
>
>
>> The harmonic frequencies at noted by Terry in his coil at 7, 17, and 33 MHZ
>> can be surpressed by space winding the secondary inductor, or, as Rich Hull
>> has done --- going to extremely large capacitance top loads to force the
>> resonator to operate at a single fundamental frequency without a lot of HF
>> harmonics.
>
>......................................Indeed, the large top loads seem to
>supress, mightily, the RF radiation to near zero even at 10,000 watts! With
>Nemesis hitting the 11KW lelvel with sparks, we took a sensitive RYCOM VLF
>receiver and RF voltmeter and noted the harmonics about the 54khz normal
>resonant frequency and was unable to pick up the harmonics 2 block from my
>house. The primary frequency died out completely at 1/2 mile. This is the
>sign of a supwrb sparker, as I have noted many times in the past on this list.
>No RF output at huge power input levels! We seek to place 100% of the power
>into air losses! VSWRs approaching infinity. Giant capacitive loads feeding
>air with hot lossy arcs consuming and shunting all power to ground or its
>isotropic analog. Probably more RF energy is sent out in the higher non
>harmonic frequencies generated by the arcs and arc related phenomena than the
>primary RF resonant frequency of operation! Move as far away from radio
>engineering principles as possible once you have the energy in the primary
>circuit.
>
>Richard Hull, TCBOR
>
>
>