If this is your first visit, be sure to
check out the FAQ by clicking the
link above. You may have to register
before you can post: click the register link above to proceed. To start viewing messages,
select the forum that you want to visit from the selection below.
Don't really feel motivated to reupload the site since it will probably just become a target for recreational hackers again...
"Theory guides. Experiment decides."
“I do not think there is any thrill that can go through the human heart like that felt by the inventor as he sees some creation of the brain unfolding to success... Such emotions make a man forget food, sleep, friends, love, everything.”
Nikola Tesla
It runs well... decided to test it to breaking point so removed the charging battery while it was still running... lit a neon for a few seconds then popped a transistor. That was expected since the transistors are only rated up to 80v... replaced the neon with two 15v zener diodes in series, so that shouldn't happen again.
Fortunately, these transistors are dirt cheap and the circuit is laid out so they are easy to replace Another bonus is that the blown transistor was visibly damaged so it was easy to spot which one had blown
Runs well with just one half of the stators.... around 4500rpm on as little as 175ma at 12v, but can go over 6000rpm if I move the rotor away from the stators...
now just have to finish the other three boards *sigh*
"Theory guides. Experiment decides."
“I do not think there is any thrill that can go through the human heart like that felt by the inventor as he sees some creation of the brain unfolding to success... Such emotions make a man forget food, sleep, friends, love, everything.”
Nikola Tesla
“I do not think there is any thrill that can go through the human heart like that felt by the inventor as he sees some creation of the brain unfolding to success... Such emotions make a man forget food, sleep, friends, love, everything.”
Nikola Tesla
“I do not think there is any thrill that can go through the human heart like that felt by the inventor as he sees some creation of the brain unfolding to success... Such emotions make a man forget food, sleep, friends, love, everything.”
Nikola Tesla
“I do not think there is any thrill that can go through the human heart like that felt by the inventor as he sees some creation of the brain unfolding to success... Such emotions make a man forget food, sleep, friends, love, everything.”
Nikola Tesla
Although the shaft is stainless steel, it is causing huge distortions in my waves, I'm guessing due to eddy currents.
Touching the shaft, or connecting it to earth, effects the waves.
Going to replace it with a carbon fibre shaft next week.
"Theory guides. Experiment decides."
“I do not think there is any thrill that can go through the human heart like that felt by the inventor as he sees some creation of the brain unfolding to success... Such emotions make a man forget food, sleep, friends, love, everything.”
Nikola Tesla
Although the shaft is stainless steel, it is causing huge distortions in my waves, I'm guessing due to eddy currents.
Touching the shaft, or connecting it to earth, effects the waves.
Going to replace it with a carbon fibre shaft next week.
When I went to get stainless steel from a hardward store, I would take a powerful neo with me to test the quality of what I was getting. Some showed more magnetism than others.
Really good work! --- Can you help clarify a few points on your build? What guage wire did you finally use on the MG-3 quadfilar? Also, does your video show you using the 2N5551 transistor, or is this in your next circuit build, since you mentioned this above? Have you figured if you are betting the 28% efficiency [most ssg's]?
Keep up the work... love following your lead and learning from everyone.
Really good work! --- Can you help clarify a few points on your build? What guage wire did you finally use on the MG-3 quadfilar? Also, does your video show you using the 2N5551 transistor, or is this in your next circuit build, since you mentioned this above? Have you figured if you are betting the 28% efficiency [most ssg's]?
Keep up the work... love following your lead and learning from everyone.
the ole shop school tchr.
each coil uses 30 SWG wire (not awg) and has four power windings (200 turns). The inductance is a bit low, so I'm considering wiring the the coils so that there are two power windings with two pairs of windings in series so they will have twice as many turns. This will lower my top speed, but should produce better torque.
I haven't swapped the transistors yet... the zeners I added seem to be protecting the MPSA06 transistors ok, but if one does fry then I will replace them all with the 2N5551 transistors which are similar spec, but higher voltage.
About to start doing COP measurements, but I'm pretty sure that even with the steel shaft the charging COP will be above 28%
"Theory guides. Experiment decides."
“I do not think there is any thrill that can go through the human heart like that felt by the inventor as he sees some creation of the brain unfolding to success... Such emotions make a man forget food, sleep, friends, love, everything.”
Nikola Tesla
“I do not think there is any thrill that can go through the human heart like that felt by the inventor as he sees some creation of the brain unfolding to success... Such emotions make a man forget food, sleep, friends, love, everything.”
Nikola Tesla
the 2N5551 transistors are CR@P! Looked ok on paper but in practice their gain is pathetic... going back to the MPSA06...
"Theory guides. Experiment decides."
“I do not think there is any thrill that can go through the human heart like that felt by the inventor as he sees some creation of the brain unfolding to success... Such emotions make a man forget food, sleep, friends, love, everything.”
Nikola Tesla
Comment