this is an interesting thread!
i have to build my own in a few week! For calculating the final capacitance
i can use the same formula of solid one? right?
2015-01-15 16:04 GMT+01:00 Jim Lux <jimlux@xxxxxxxxxxxxx>:
> On 1/15/15 6:20 AM, Tuomas Koivurova wrote:
>
>> I went for 1.5x tube diameter spacing (from side to side) and it works ok.
>> I do get stray streamers at extreme power levels but that is to be
>> expected.
>>
>
> so, for a 1cm tube, there would be 1.5cm between tubes (the tubes are
> 2.5cm center to center)?
>
> That's similar to the "spacing = circumference" that I use when modeling
> structures and antennas in NEC.
>
>
>
>
> On 15 Jan 2015 16:15, "Jim Lux" <jimlux@xxxxxxxxxxxxx> wrote:
>>
>> Anyone have any design guidelines for top load toroids made of tubes
>>> (like
>>> Greg's picture in the recent post on 150kVA SGTC thread).
>>>
>>> Is there some rule of thumb like "spacing between the tubes should be the
>>> tube diameter or circumference"..
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