[Prev][Next][Index][Thread]
Re: New Testing
From: Dan Kline[SMTP:ntesla@ntesla.csd.sc.edu]
Reply To: ntesla@ntesla.csd.sc.edu
Sent: Friday, September 12, 1997 10:02 AM
To: tesla@pupman.com
Subject: Re: New Testing
>
>From: Edward J. Wingate[SMTP:ewing7@FRONTIERNET.NET]
>Reply To: ewing7@FRONTIERNET.NET
>Sent: Thursday, September 11, 1997 9:22 PM
>To: Tesla List
>Subject: Re: New Testing
>
>Tesla List wrote:
>>
>> From: Thomas McGahee[SMTP:tom_mcgahee@sigmais.com]
>> Sent: Thursday, September 11, 1997 2:24 PM
>> To: Tesla List
>> Subject: Re: New Testing
>>
>> > From: Esondrmn@aol.com[SMTP:Esondrmn@aol.com]
>> > Sent: Wednesday, September 10, 1997 7:55 PM
>> > To: tesla@poodle.pupman.com
>> > Subject: New Testing
>
>> > When I first powered it up, the primary current in to the pole pig
>> was about
>> > 12 amps. The gaps would only fire erratically even at full variac
>> voltage.
>> > I tried switching in more resistive load in parallel with the
>> welder and the
>> > gaps almost quit firing altogether with all elements on - about 3.3
>> ohms. I
>> > unplugged the resistive element bank so the welder was on it's own.
>> As I
>> > increased the variac voltage, the gaps started firing erratically
>> again and
>> > the spark gap across the main (.025 mfd) cap started firing.
>> Someone said
>> > this would be very loud and they are right, no mistaking if it is
>> firing or
>> > not.
>> >
>>
>> BANGGGGGG! And it reverberates in your mind for a while!!
>> But if the gap across the safety on the cap is firing, then that
>> means that your regular spark gap must be open larger than the safety
>> gap.
Hmmm...I'm not sure if this went out before or not...if so, my apologies to
the list
Ed,
Check your secondary for internal arcing along the inside of the coil form.
I know your secondary is sealed and all that, but I've had this *exact same
problem* when I had interturn arcing on the *inside* of the coil form.
Dan