Re: [TCML] Low power coil means physically small coil ?

[jhowson4@xxxxxxxxxxx]

Hello, 

In general yes low power coils tend to have higher frequencies. For a couple reasons. 
1) the secondary is smaller meaning fewer turns pushing the frequency up 
2) the toroid is smaller meaning less capacitance pushing the frequency up 
3) the tank capacitor tends to be smaller pushing the frequency up, its smaller because the smaller current in the power transformer will charge a smaller cap faster allowing for a higher bps making the coil more effective at those lower power levels in my opinion. 


just a few reasons this tends to be the case there are probably more 



Thanks, 
John "Jay" Howson IV 


"Why thank you, I will be happy to take those electrons off your hands." 

----- Original Message -----
From: "Gerekos Christopher" <gerekos.christopher@xxxxxxxxx> 
To: tesla@xxxxxxxxxx 
Sent: Tuesday, June 26, 2012 4:53:39 PM 
Subject: [TCML] Low power coil means physically small coil ? 

Hello, 

I'm currently building a low-power Tesla coil, with the NST delivering 6kV, 
25mA. At the moment, only the capacitors have been mounted (20 nF). 
Following how I plan to build my Tesla coil, I see that its resonant 
frequency will be around 290 kHz. 

On many websites, I saw that such low-power coils are physically small, 
which implies their resonant frequency is high. Is there a specific reason 
for that ? If a low-power coil is physically larger, will its performances 
be lower ? And at which extent does the resonant frequency play a role in 
arc length ? 

Thank you in advance. 

With kind regards, 

Chris Gerekos. 
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