[time-nuts] Transformer design.
xformer at citynet.net
Mon Jun 27 22:18:49 UTC 2011
I knew I should have added the leyden jars and the coil!
I just saw an old Central Scientific induction coil with spark gap auction
off on ebay a while back, and this made me think of it.
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On 6/27/2011 at 3:11 PM J. Forster wrote:
>Sadly no. You need a good impedance match from transmitter to antenna.
>A Tesla coil has a very high output Z.
>> 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.
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>> 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
>>>coil with a 16kv, 60ma neon transformer, a pressurized air-quenched
>>>gap, a huge variac, and a bank of 50 .15mfd (I think they were
>>>was a long time ago--capacitors. The finished product, in addition to
>>>dangerous as hell to the careless operator could be heard more than a
>>>away and generated enough hash to bring TV and radio reception to a halt
>>>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
>>>secondary in resonance but, believe me, it is not "just" a transformer.
>>>On Mon, Jun 27, 2011 at 3:08 PM, Brooke Clarke <brooke at pacific.net>
>>>> It turns out that a Tesla coil is not magical, it's just an RF
>>>> where the primary and secondary are resonated. I took him some time
>>>> 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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