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Re: [TCML] Re-visited - Newbie question - Where does all the energy go?



Phil,

Yes you are correct. I made a typo and it should have read " lower" as you pointed out...

Regards,
BrianB




On May 27, 2012, at 6:33 AM, "Phil Tuck" <phil@xxxxxxxxxxx> wrote:

> BrianB's comment of "Do you have access to an oscilloscope and signal
> generator?  It would be good to check the as built frequency of the
> secondary then set the primary to match that frequency plus about 5%" 
> is a typo as you want to set the primary frequency # lower # than the
> Ysecondary, by detuning it. This is because the streamers will drop the
> secondary res freq down when they form.
> Using a scope, sig gen and probe as an aerial you can simulate streamer
> effect with lenghts of wire if your really keen, or just go 5% to 8% lower
> (mine likes about 10% though - 80kHz & 72 kHz)
> 
> Phil Tuck
> 
> www.hvtesla.com
> 
> -----Original Message-----
> From: tesla-bounces@xxxxxxxxxx [mailto:tesla-bounces@xxxxxxxxxx] On Behalf
> Of BrianB
> Sent: 25 May 2012 15:50
> To: Tesla Coil Mailing List
> Subject: Re: [TCML] Re-visited - Newbie question - Where does all the energy
> go?
> 
> Peter,
> 
> Maybe there is another coiler in your area that could visit you and look it
> over. Where are you located?
> 
> Do you have access to an oscilloscope and signal generator?  It would be
> good to check the as built frequency of the secondary then set the primary
> to match that frequency plus about 5%. That would insure you are tuned close
> to optimal and not on one of the resonant frequencies... 
> 
> If you don't have access to the test equipment a local ham radio club
> usually has someone more than willing to bring their gear over and help out.
> In fact they love a new challenge especially on old technology and it gives
> them something to talk about on the radio....
> 
> Regards,
> BrianB
> 
> 
> 
> On May 25, 2012, at 2:38 AM, Peter Sutter <peter@xxxxxxxxxxxx> wrote:
> 
>> No visual signs of any damage on the secondary.
>> 
>> 
>> Thanks
>> 
>> Peter
>> 
>> 
>> On 05/25/2012 10:51 AM, kylesenior@xxxxxxxxxxx wrote:
>>> Black scorch marks are usually what you get with a short, sometimes
>>> fire as well
>>> 
>>> ----- Original Message -----
>>> From: "Tesla Coil Mailing List"
>>> To:"Tesla Coil Mailing List"
>>> Cc:
>>> Sent:Fri, 25 May 2012 09:44:25 +0800
>>> Subject:[TCML] Re-visited - Newbie question - Where does all the
>>> energy go?
>>> 
>>> I refer to my problem as described in
>>> http://www.pupman.com/listarchives/2012/Apr/msg00135.html.
>>> 
>>> I followed the recommendations by various posters,
>>> 
>>> - I re-built the spark gap, same result.
>>> - I made various new capacitors, same result.
>>> - I added a second 12 KV 30 ma NST in parallel, same result.
>>> - I re-wired all connections with 10 gauge, same result.
>>> 
>>> The only part left untouched now is the secondary coil. Is it
>>> possible that there is a short circuited winding? Would that be
>>> consistent with the problems I experience?
>>> 
>>> How would I find the location of the short? I inspected it visually
>>> but can't find anything odd. What would I look for? would it get
>>> warm at the fault after prolonged running?
>>> 
>>> Thanks for any assistance.
>>> 
>>> Peter
>>> 
>>> _______________________________________________
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>>> ---- Message sent via Adam Internet WebMail - http://www.adam.com.au/
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>> 
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