Re: New Testing
From: Dan Kline[SMTP:ntesla-at-ntesla.csd.sc.edu]
Reply To: ntesla-at-ntesla.csd.sc.edu
Sent: Friday, September 12, 1997 10:02 AM
Subject: Re: New Testing
>From: Edward J. Wingate[SMTP:ewing7-at-FRONTIERNET.NET]
>Reply To: ewing7-at-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-at-sigmais-dot-com]
>> Sent: Thursday, September 11, 1997 2:24 PM
>> To: Tesla List
>> Subject: Re: New Testing
>> > From: Esondrmn-at-aol-dot-com[SMTP:Esondrmn-at-aol-dot-com]
>> > Sent: Wednesday, September 10, 1997 7:55 PM
>> > To: tesla-at-poodle.pupman-dot-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
>> > 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
Hmmm...I'm not sure if this went out before or not...if so, my apologies to
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.