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Hi All,
I have been working on this thought for a very long time.....what are the limitations and why do they exist. I have gone over and over this problem and keep running into the same results. After burning up several transistors and experimenting with different coil sizes it comes down to this one thing. We are limited by the transistor technology. We can build coils of any size and we can produce some very impressive negative energy but directing it has always been the big problem. JB has tried rotating armatures with brushes but the break of the dc input and the connection of negative energy output burns the hell out of the contact areas. They just do not last very long.
JB then went to using MJL21194 transistor and it worked well.......providing we do not put too much power thru it. The transistor is the weakest link. The MJL21194 has a current rating of 15amp and the FJL6920 has a current rating of 20 amp. We are limited by the amount of current we can move thru these components. This means that we are limited by the amount of power input and exhaust thru this little devise. We can use any size coil we want providing we do not exceed the limitations of the transistor we are using. Around 130 feet long of #18 wire is the maximum size we can get away with without exceeding the transistors power handling capabilities.....at 12 volt. If we exceed 12 volt @ 130' then we are taxing the transistor very hard. Those wanting to exceed 12 volt must use a shorter coil length to limit the amount of power so we do not burn the transistors. We can also use many coil windings litzed together providing each single coil lead is on its own transistor and we do not tax the transistor too hard.
At the end of the day the transistor is the weak link in the SG. Until someone comes up with a much higher "fast switching" current rating transistor then we are limited to 130' of coil wire per strand.
Bud
I have been working on this thought for a very long time.....what are the limitations and why do they exist. I have gone over and over this problem and keep running into the same results. After burning up several transistors and experimenting with different coil sizes it comes down to this one thing. We are limited by the transistor technology. We can build coils of any size and we can produce some very impressive negative energy but directing it has always been the big problem. JB has tried rotating armatures with brushes but the break of the dc input and the connection of negative energy output burns the hell out of the contact areas. They just do not last very long.
JB then went to using MJL21194 transistor and it worked well.......providing we do not put too much power thru it. The transistor is the weakest link. The MJL21194 has a current rating of 15amp and the FJL6920 has a current rating of 20 amp. We are limited by the amount of current we can move thru these components. This means that we are limited by the amount of power input and exhaust thru this little devise. We can use any size coil we want providing we do not exceed the limitations of the transistor we are using. Around 130 feet long of #18 wire is the maximum size we can get away with without exceeding the transistors power handling capabilities.....at 12 volt. If we exceed 12 volt @ 130' then we are taxing the transistor very hard. Those wanting to exceed 12 volt must use a shorter coil length to limit the amount of power so we do not burn the transistors. We can also use many coil windings litzed together providing each single coil lead is on its own transistor and we do not tax the transistor too hard.
At the end of the day the transistor is the weak link in the SG. Until someone comes up with a much higher "fast switching" current rating transistor then we are limited to 130' of coil wire per strand.
Bud
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