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Post by lamazoid on Apr 19, 2008 1:24:30 GMT -8
I asked a friend to watch this video. Yes this is exactly what described in my article, this was made by one of our members following my directions. I collect reports of making this stun gun here steelrats.net/forum/viewthread.php?forum_id=11&thread_id=253There are photos of this and other guns made by our members.
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Post by Deleted on Apr 19, 2008 19:09:37 GMT -8
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Post by Deleted on Apr 19, 2008 19:13:02 GMT -8
Whether it is still very big, I can edit it. The video lasts 30 seconds, but I can shorten it to 10 seconds My Computer Won't let me view "RAR" Files. (MPG or AVI are OK)
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Post by lamazoid on Apr 20, 2008 12:19:39 GMT -8
I have downloaded this and confirm it's what i was talking above
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Post by Deleted on Apr 21, 2008 15:32:17 GMT -8
It`s impressive I love it... My stun gun achieves sparks of 50 mm of length but very thin not very constant, they divide in 4 or 5 thin sparks
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Post by Deleted on Apr 23, 2008 12:52:05 GMT -8
Hello to all, nobody post? I have a question for some wise person... Why my circuit delivers a very thin spark (poor current)? Thin wire of the T1 or transistor?
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Post by lamazoid on Apr 24, 2008 0:34:05 GMT -8
This is because of T2. Either it has leakage (corona) or wrong number of turns. Post here all details of your circuit (capacitance, breakdown voltage of arrester, number of turns T2 primary , material of core) and maybe i can help. Generally, to have good spark from only a transformer you should use thick wire or less number of turns on secondary; but there's a problem of getting long spraks this way, so while decreasing nubmer of turns (and turns ratio) you should increase core size.
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Post by Gary Lecomte on Apr 24, 2008 5:43:24 GMT -8
This is because of T2. Either it has leakage (corona) or wrong number of turns. Post here all details of your circuit (capacitance, breakdown voltage of arrester, number of turns T2 primary , material of core) and maybe i can help. Generally, to have good spark from only a transformer you should use thick wire or less number of turns on secondary; but there's a problem of getting long spraks this way, so while decreasing nubmer of turns (and turns ratio) you should increase core size. Also as I Mentioned previously: Looking at your picture it appears you have a considerable "Air Gap" between the "primary coil/ferrite and the secondary bobbin". And How Thick is Delrin under your secondary windings? The Greater the Distance between the Primary and Secondary windings, The Less the Energy transfer. Lastly, What is your Primary Voltage and Current Draw? Gary
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Post by Deleted on Apr 24, 2008 17:21:52 GMT -8
Thanks guys, tomorrow will write details of my stun gun
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Post by Deleted on Apr 25, 2008 13:22:40 GMT -8
Well, here are the details of my stun gun: Spark internal T2: NO (nothing) Wrong number of turns T2: surely. Capacitor storage: 0.11 uF (2 x 0.22 x 630V uF) Voltage output T1: 500V AC Voltage output T1 after (passing) through the diode: 850V DC Voltage breakdown spark gap: tester broke in scale 1000V DC ... R.I.P. HV COIL DATA: Ferrite rod 9mm very poor quality, adjusted to the bobbin (no space between primary and secondary) Primary: 30 rounds of 0.45mm wire Secondary: Delrin bobbin 13 sections 250 turns by seccion.Wire 0.10mm
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Post by Deleted on Apr 25, 2008 14:04:52 GMT -8
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Post by Gary Lecomte on Apr 25, 2008 15:10:35 GMT -8
Well, here are the details of my stun gun: Spark internal T2: NO (nothing) Wrong number of turns T2: surely. Capacitor storage: 1.1 uF (2 x 0.22 x 630V uF) Voltage output T1: 500V AC Voltage output T1 after (passing) through the diode: 850V DC Voltage breakdown spark gap: tester broke in scale 1000V DC ... R.I.P. HV COIL DATA: Ferrite rod 9mm very poor quality, adjusted to the bobbin (no space between primary and secondary) Primary: 30 rounds of 0.45mm wire Secondary: Delrin bobbin 13 sections 250 turns by seccion.Wire 0.10mm What are you using for a Battery or Power Supply? At What Voltage? And What is your Current Draw? Did you get the Parts I sent you? Try one of those Ferrite Rods.
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Post by Deleted on Apr 25, 2008 15:51:30 GMT -8
Using a transformer 12V 1A or an alkaline battery 9v get same spark alike. What is my Current Draw? " I dont know, my tester is dead" The letter did not arrived, perhaps the mail lost.
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Post by Deleted on Apr 25, 2008 19:45:32 GMT -8
I think I must make the T2 in 1750 rounds, not 3250. This weekend I will to try.
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Post by lamazoid on Apr 28, 2008 2:03:55 GMT -8
Ivan, do you observing yellow flashes at the terminals (at the ends of spark) ? I think (looking at those photos) you need to increase T2 primary. You wrote: "Capacitor storage: 1.1 uF (2 x 0.22 x 630V uF)" This can't be. Either you connect two 0.22 caps in series and you get 0.11 uF , or in parallel, resulting in 0.44 uF. This is impossible to have 1.1 uF from this two caps. Assuming you connected them in series, and you have poor ferrite rod like those used in AM antennas, you need at least 80 turns primary for effective operation.
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