[time-nuts] Transformer design.

J. Forster jfor at quik.com
Mon Jun 27 22:11:33 UTC 2011


Sadly no. You need a good impedance match from transmitter to antenna.

A Tesla coil has a very high output Z.

-John

============


> Bill,
>
> Now, if you could have connected a key to that, and a long wire antenna,
> you would have been in business! One gigantic spark gap transmitter.
>
> Best,
>
> Will
>
> *********** REPLY SEPARATOR  ***********
>
> On 6/27/2011 at 5:36 PM William H. Fite wrote:
>
>>Without meaning to sound sassy, Brooke, let me assure you that there is
>>nothing "just" about it.  While in high school I built quite a large
>> Tesla
>>coil with a 16kv, 60ma neon transformer, a pressurized air-quenched spark
>>gap, a huge variac, and a bank of 50 .15mfd (I think they were
> .15mfd--that
>>was a long time ago--capacitors.  The finished product, in addition to
> being
>>dangerous as hell to the careless operator could be heard more than a
> block
>>away and generated enough hash to bring TV and radio reception to a halt
> in
>>the whole neighborhood.
>>
>>And that isn't even a big one...
>>
>>So, no, it isn't magic and yes, it is an RF transformer with the primary
> and
>>secondary in resonance but, believe me, it is not "just" a transformer.
>>
>>Bill
>>
>>
>>On Mon, Jun 27, 2011 at 3:08 PM, Brooke Clarke <brooke at pacific.net>
>> wrote:
>>
>>> It turns out that a Tesla coil is not magical, it's just an RF
> transformer
>>> where the primary and secondary are resonated.  I took him some time to
> find
>>> a mechanical structure (pipe mast insulated by wine bottles with a
>>> capacitive top hat).  The high school "Tesla Coils" really are just RF
>>> transformers because they omit the resonance on the secondary.
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