New comer needs any and all help

[TinselKoala]

Oh, I forgot to mention.... I also made an optical pickup, so that I can have that independent look at the rotor rotation that doesn't depend on the circuit. This will allow me to see what happens to the timing when the coils are reversed, so I might be able to answer my question of "how" does this motor even work in the first place.
I hope.

Anyway, I have a little IR send-receive module that I got at the surplus store, all it needs is a 5 volt supply and it makes a 5 volt pulse when it sees a reflective bit of aluminum duct tape go whizzing past its face. So I mounted it on a board with a 78L05 mini voltage regulator and a filter cap, and hooked it up to the motor's power supply input. It adds about 30 mA to the total consumption so I have to allow for that when dialing in the current for the sweet spot. 250 mA + 30 mA = 280 mA is my target now.
I put four strips of aluminum duct tape on the rotor top surface and positioned the IR head to look down at the rotor. Now, by hooking the scope probe to the IR board I have a nice square pulse that shows what the rotor itself is doing, no matter what the electronics of the motor decide to do.

[jhsmith87]

I thought about running one. On a ir or optical sensor but didn't really put much more than a thought in it. But it wouldbe cool..

[jhsmith87]

Hey I was thinking about making a coil with a lower gauge wire. Like 18 and 23. What do u think what would the difference be u think?

[TinselKoala]

Hey I was thinking about making a coil with a lower gauge wire. Like 18 and 23. What do u think what would the difference be u think?

I'm sure it would work. Your current consumption and "sweet spot" base resistance will probably change.

I've found the greatest difference to be with the transistor! I finally blew the other "new" RS 2n3055, so I re-tried an old one marked "weak".... but it's not! With my new coil described above, this transistor, the old 2n3055, works incredibly well, but the base resistance has changed. This transistor runs the motor on 50 mA quite well and has its "sweet spot" at around 170 mA, a little over half what the RS transistor wanted, and there is plenty of HV to light the neon superbright or run the ring oscillators. The sweet spot is still just barely before the glowing of the filament in the base resistance, but there is a much wider range between too much and too little, with this transistor.

I can't read the manufacturer's stamp on this 3055, but the difference is significant, for sure.

So I'll say, wind your coil with the thicker wire, use a variable resistance in the base circuit, and try to get some different 2n3055 transistors from different lots or manufacturers to try.


I've also been charging and swapping batteries. It's an interesting exercise.... I can see the run battery decreasing in voltage and the charge battery increasing in voltage, and swap them back and forth several times ... but the running average of the two batteries seems to be steadily declining, and where I might start with one at 12.0 volts and the other at 12.6 volts, after a while I have both batteries at 12.2 volts... and downhill from there, until both are below 12 volts and I give up and recharge them with the real battery charger.

[jhsmith87]

Wow u been doin a lot of work lately. I've been trying to play with the jt lately. I want to make one I can hook up to 12v or 9v and get a really high amp draw from.. I have seen many diagrams but can't seem to replacte them. I've seen some on u tube powering big Flo light bulbs. That's really what I wanna try to do they all seem to have three winds. I just can't get it. I've got several toroids wound already some with small gauge few turns and big gauge lots of turns and many other variations. Do u know anything bout that? U help a lot on the motor maybe u can with helping me make a high powered jet. Could I hook a transformer to the out put of the jt? Or what could I do. How can I do this..