Re: new coiler's first coil

["Tesla list" <tesla@xxxxxxxxxx>]

Original poster: robert heidlebaugh <rheidlebaugh@xxxxxxxxxxxxxx>

Mike: I have also had bad luck with orbit transformers. They just fail
quick.
   Robert   H
--


> From: "Tesla list" <tesla@xxxxxxxxxx>
> Date: Mon, 09 May 2005 10:54:49 -0600
> To: tesla@xxxxxxxxxx
> Subject: Re: new coiler's first coil
> Resent-From: tesla@xxxxxxxxxx
> Resent-Date: Mon,  9 May 2005 10:57:36 -0600 (MDT)
>
> Original poster: "Mike" <mike.marcum@xxxxxxxxxxxx>
>
> With a 12/27 obit (at 140v) I've gotten 24" before the obit was toast (seem
> to be more fragile than nst's as they only run for a few seconds at a time
> in regular service). I'm guessing that what is limiting your output is the
> 2.5mm gap. I've ran 15/60 nst's at 6mm with no problems (tho they were
> unpotted, no tar to track or trap heat, eventually the devil got the best
> of me and I opened the gap to ~12 mm with 140 in and got almost 66" before
> the nst fried). You could prob go 4 mm or so with 10.5kv.
>
> Mike
> ----- Original Message ----- From: "Tesla list" <tesla@xxxxxxxxxx>
> To: <tesla@xxxxxxxxxx>
> Sent: Sunday, May 08, 2005 10:45 PM
> Subject: Re: new coiler's first coil
>
>
>> Original poster: "Paul B. Brodie" <pbbrodie@xxxxxxxxxxxxx>
>>
>> Keith,
>> All I really have to say is that I think you have done a heck of a good
>> job, especially for a first try! Congratulations. I'm sure that these guys
>> will give you the advice you need to maximize your output and improve
>> things in general. I tell you what, I hope mine looks anywhere near this
>> good when I'm finished. You should be proud of yourself.
>> Regards.
>> Paul
>> Think Positive
>>
>> ----- Original Message -----
>> From: "Tesla list" <<mailto:tesla@xxxxxxxxxx>tesla@xxxxxxxxxx>
>> To: <<mailto:tesla@xxxxxxxxxx>tesla@xxxxxxxxxx>
>> Sent: Sunday, May 08, 2005 6:33 PM
>> Subject: new coiler's first coil
>>
>> Original poster: "keith" 
<<mailto:keith.cc@xxxxxxxxxxx>keith.cc@xxxxxxxxxxx>
>>
>> Hello everyone,
>> I am new to this list and to coiling in general. I've just finished
>> building my first rather small conventional coil. I got lucky and it worked
>> well the first time I turned it on, although I am not sure if it is
>> perfectly in tune. I've made a website with pictures/detailed
>> specifications etc -
>> 
<<http://webpages.charter.net/keithcc/tesla>http://webpages.charter.net/keith
>> 
cc/tesla>http://webpages.charter.net/keithcc/tesla>http://webpages.charter.ne
>> t/keithcc/tesla.
>> My primary question is whether or not, judging by streamer length, the coil
>> looks like its in tune - although I've seen lots of pictures of other
>> people's coils in operation on the internet, I just don't have the
>> experience to know if the output I'm getting (14-15 inch streamers at 140v
>> input) is the best I can get given the size of my power supply (9kv 30ma
>> nst). I've also found that the safety gaps are firing quite a bit,
>> sometimes continuously for a few seconds, and especially if I widen the
>> main gap - is this normal? I know the safety gaps are wide enough so that
>> they would not normally fire, but I'm not sure if it's normal for them to
>> be firing as much as they are. Any other general suggestions are of course
>> welcome. I do know there are a couple of flaws - my main gap could be
>> better, the connection between my secondary and ground is a bit sketchy,
>> and my terry filter, especially the resistors, are probably a bit overkill
>> given my modest power supply. Thanks in advance for suggestions/comments
>> etc - I'm still very new to all of this - I only started researching tesla
>> coils/teaching myself about electricity about three months ago. By the way,
>> I'm an eighteen year old high school senior (soon to be college freshman!)
>> living in Massachusetts.
>>
>> Keith C
>>
>>
>>
>>
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