RE: [TCML] Coil V4 fail (additional)

["Phil Tuck" <phil@xxxxxxxxxxx>]

Stephan,

Your specs are similar to mine.

I compared a recent video where I have resonant capacitor (101nF) cap
against an earlier run with the same ballast setting (20 mH) but where it
was just below the resonant value with a 72nF capacitor. 

You can see the difference between the two. (Both are 200bps SRSG with a
Freau controller)

How much is down to making the system being resonant @ 200bps and just how
much is just down to a larger cap, it is hard to say of course. 

 

My earlier 72nF setup was almost resonant:
http://www.youtube.com/watch?v=dZc9mUOJh9Y

 

The latest 101nF setup is resonant (@ 200bps on 50Hz ):
http://www.youtube.com/watch?v=DBG_0Xv7J3s

 

 

Phil

 

 

 

 

-----Original Message-----
From: tesla-bounces@xxxxxxxxxx [mailto:tesla-bounces@xxxxxxxxxx] On Behalf
Of Teslalabor
Sent: 06 November 2010 14:57
To: Tesla Coil Mailing List
Subject: Re: [TCML] Coil V4 fail (additional)

 

Phil,

okay thanks a lot. Will post the results + video of the coil running. Just
have to put the parts together. By the way, the specs of the tank circuit
are (resulting from the resonant charging design procedure):

 

Input: 0-240V fed via variac

Power coil will process: 5kW

200bps SRSG

Primary Voltage: 10kV from PT's

heavy adjustable air gapped inductor 20mH ( if "I" part of core completely

removed) ... >100mH; no saturation effects), adjusted to 30,8mH 98nF Tank
Cap (commercial 25kV BOSCH pulse cap) - REMEMBER, I first used 240nF and got
badly glowing electrodes @ my SRSG!

 

It's the first system I designed this way - all my earlier systems I did the
way "take some parts and see what happens". So I am absolutely longing what
performance this system will have.

 

Best Regards

Stefan

 

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