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This was my new primary. Way too
wide. I made it out of 50 feet of 3/8 inch copper tubing. It had 8.5 turns, 8
inch inner radius, and a 14 inch outer radius. The total inductance was about 50
uh. There is a one foot ruler laying inside of the coil. The red spool was
2500 feet of 20 awg magnet wire. I used the wire to wind two new 6"
secondarys. My 100 kv 0.01 uf capacitor is in the bottom right of the picture.
The white supports are 3/8 inch thick poly. I drilled holes in the poly for the
plastic ties. They held the copper tubing in place. I bought the copper tubing
from Home Depot and the plastic ties from our local electric store. Primary
construction time 2 hours and 30 minutes. G, I was slow. |
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This was my new primary with my first
secondary. Now since I have finished my new secondary the question is who do I
give my old coil to? As a side note. I took out a rotary saw and chopped it in
half. I use it now as my RF chokes. :) |
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This is my new secondary with my new
primary. Its about 700 turns of 20 awg magnet wire. It took me about 2 hours
to wind it. Still slow. I placed a coke can in the picture for a idea of its
size (yes its A&W). Its hard to see but I do have a strike rail. Later I
removed the strike rail because of excess hits from the toriod. |
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This is my crude setup for
winding. You can see my old secondary in the background to give you a idea of
the new secondary's size. Its hand wound. Took me about 2 hours for the first
one and 45 minutes for the second. Notice my paper weights. About 20 joules
each. When doing this I recommend some music and a nice big cold drink. The
secondary windings are 25 inches long. The PVC is 30 inches long and 6.5 inches
wide. Inductance 20 mh. Frequency 300 khz, with toriod 200 khz. I
am planning to run theses 180 degrees out of phase. |
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This was my new spark gap. Its like a
Richard Quick style gap (RQG) but on a flat surface instead of in a PVC tube. The
gap had 10 electrodes. The electrodes were 7/8 inch copper tubing and were 6 inches
long. Total gap distance about 0.75 inches. The white platform is a poly
cutting board. Since I started using this gap my streamers increased 50% in length
and are much brighter. This gap took me about 90 minutes to make and works great! |