Subject: Re: phase
From: chip (Chip Atkinson)
Date: Fri, 29 Apr 1994 08:40:47 +0700
The transformers are all 15000v. There are two 60ma and 3 30ma transformers.
I made sure that they are all in phase. I made sure that they are definitely
That's the same type I am planning to build. How did you gauge the
spacing between the pipes? Is your gap snapping and sparking well or
does it buzz?
>>> For the spark gap, I used a rotary wire brush in a drill to clean up the
>>> pipes. Then I used a clamp arrangement to hold the pipe. This provides
>>> some adjustment capabilities. The clamps are little pieces of wood that
>>> stick inside of the pipe and have screws in the middle:
# | ____ Bottom of Tube____
The # is a little block of wood to support the back of the little wood
piece, and the | is the screw to hold the thing down.
I used the old automotive feeler gauge to set the gaps. The gap is a
"snappy buzz". (How's that for a non-answer?) It doesn't hum with the
60Hz buzz, but, because of the closeness of the pipe pieces, the sparks
are not loud snaps.
>>> From what I have taken in so far, it's either too tightly coupled with
>>> the primary, or there is some type of dead short, like moisture or
Perhaps the primary needs reworking. One thing too is that once the insulation
on the wires is burned through, it will always spark.