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10-18-02 I have begun a few test firings of my new Thompson Coilgun which will be powered by a 30KJ 40kv 40uf
Maxwell Pulse Capacitor. It will first be powered mainly by a 5kv MOT which will itself be hooked up to a variac.
My main firings will be to allow me to measure the tempreture of the coil after each firing as I increase the voltage
of the capacitor from the Variac. The wire is AWG4 Braided Silver wire with a resistence of .01ohm/foot
should be able to handle the 30KJ ultimate blast from the capacitor, but with such a energy as 30KJ im taking
precautions and steps just to be sure. So far I have done 10 firings which were in the order of,2 at 100v,5 at 3kv,
and 3 at 5kv. At 100v .2J the projectile barely moved, I emmedietly moved to 3kv 180J where the projectile whent right through a
Soda can and on a seperate firing a Gatoraded bottle. At 5kv instead of cans and bottles I used my MCSE book which is hardcover
,and over 400 pages now that I am getting into higher projectile speeds. The 5kv shot sent the projectile into the book,
the tip of the ring could be seen sticking out barely of the cover.
10-15-02 Recieved my new 40kv 40uf Maxwell Pulse Capacitor yesterday, and will begin work on next high
powered Thompson Coilgun Model.
4-12-02 I am now working on a handheld coilgun pistol that will be using a 4000v
100-220mfd pulse rated capacitor, with speeds upto 2000ft/sec. I will be using a 12v-4kv .7a
transformer to charge the cap/s from a 12v 1AH battery. In all there will be 3 sections
to the new model, 1. Coil housing size:1"x1", 2. Electronics&battery housing, includes
5000v 600amp Diode, a 5000V, 4600A SCR, charger, and 1ah 12v battery. In the final third
section will be the 4000v 100-200mfd "whatever I can find" capacitor.
4-10-02 Finally I have time to myself so that I can update my website,
expect many change's and new coilgun models to come.
9-21-01 Completed the 5kv .1amp charger for my latest coilgun desighn,
project, model. With this charger, and the desired capacitors I still hae
not aquired it should not take more than 20sec per full charge. 5-10sec
would be a favorable time, these are just calculations. I guess I shall
just have to wait and see.
9-20-01 I have finished building my 100kv spark gap today, and the
view is spectacular. I have gotten sparks as large as 10 inch's long, I
also hae created an extra spark interupter. It consists of a 12v .5/amp
10,000 RPM motor connected to a 10k pot."Incase you dont know a POT is a
multi value resister" I connect the negitive terminal to the motor, and
the positive is stationary. On the motor's drive axel I have connected a
small metal strand. If any of you want to work on a great HV project that
is fun and easy try a jacobs ladder or spark gap. Jacobs ladder's use
arc's but the heat made cause's the arc to rise up the two poles.
9-11-01 Today I have just recieved the 4/1kv 800amp stud diodes I had
previously ordered. Since I allready have 1 1kv 800amp stud I now can put
them in series at 5kv to be paralell to the coil. Also I began building
the 100kv cascade, with the first 10 stages done only 10 more to go but I
still need to order more 5kv 25ma diodes in.
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