Self accelerating reed switch magnet spinner.

[Magluvin]

MH:

I agree but,  (always a but) does the frequency not have to increase also or, in TK's set-up, does that happen automatically like in a Bedini motor?  In other words, on mine, I have to change the vr's to get it to accelerate.  This can be done continually until it reaches the max rpm for that configuration.

Perhaps you can explain this:

http://www.youtube.com/watch?v=LfprTzG5SY4

I never was able to figure out why this happened the way it did.  Some folks on Youtube offered their opinions which may, or may not have been correct.

This probably has nothing to do with TK's motor and for that, I am sorry.  (But it might)

Bill

PS  I had mounted the coil on a threaded rod assembly such that I could, with some precision, move the coil's position to the rotor.  I had already found the "sweet spot" in my earlier videos.

Dang Bill. That thing screams.     I believe I can see the tape bulging outward from the centrifugal force of the magnets. Gorilla tape is very tough. 2 layers around and I wouldnt worry much. Dab a bit of super glue at the edge of the last wrap to ensure that it wont flap out and slap the coil, ever.     Or fiberglass a ring around the outside of the rotor.  I dont usually point these things out, except for motors that move like yours.

I had a speedup thing similar to yours, where my 2/12in reeds have resonance at certain freq. The rotor would build up and start to level off and then zing up higher, then level off again and then another step higher. So maybe your coil is doing something similar. Even if it is bifi and one coil is just for pickup, there could be capacitive effects at certain freq.  Do you have a scope?

Thanks for showing. 

Mags

[TinselKoala]

I'm not sure Drevtoob's explanation is really an explanation, it's more like just a redescription of the phenomenon. Magluvin is at least trying to say why it happens, and with a reed switch all kinds of crazy things like mechanical resonances can come into play.

But I dunno. I suspect the transistor, somehow. I've found that all 2n3055s are definitely not created equal, especially these days with substandard dies from China.


Meanwhile, the new video will be up shortly at
http://youtu.be/qSjcP55msAg

ETA: It's up now.
http://www.youtube.com/watch?v=qSjcP55msAg

[Pirate88179]

Mags:

Thanks.  Those magnets are first superglued, then epoxied around the edges and then like 5 turns of the vinyl tape over the top.  I screwed up on this Bedini design by placing all of the magnets with the south facing out instead of north.  I used Lidmotor's "transformer" bifilar Bedini coil which is basically using all of the mag wire in the top 2 of the 3 pack Radio Shack mag. wire pack.  The thinner wire, 28 ga. I think? is quite a bit longer and Lidmotor decided to use all of it so we have much more of the thinner wire as in a transformer.

Yes, I have a Tek 2013 but I am not very good with it and I am always afraid of hooking up to any of my device for fear of frying it somehow.  This motor as you saw in that video has fried 3 sets of vr's since I built it.  I tried to find heavier ones to no avail.  Sad to say, the 12 volt bats I bought for it have since died and no longer take a charge of any kind.  I recycled them.  This may be par for the course as MH says with these motors or, it could be because of my altered parameters, but I sure had fun building it.  It still sits on my coffee table.

This is nothing like what TK is doing except that I thought that possibly the altering of the resistance for increased rpm might play a part.  Glad to hear you saw something similar.

I estimated (by pitch) the rpm of this one to be about 12,000 rpm WAG.  (Wild Ass Guess)
My JohnnyDavro replications were much faster.  (Scary fast)

Bill

[TinselKoala]

Bill, is your scope a plain 2213, or a 2213a like mine? Outside they are the same, but inside, the 2213a has the attenuator/preamp system that corresponds to the 2215, and it turns out it's pretty easy to fix if it gets popped. I recently blew the input fet and PIN diode on one channel... the only hard part of the fix was locating a replacement diode. The NTE555A is the only PIN diode I could find, but while I waited for it I just used a regular small signal diode in there. The JFET I used was just a common MPF102,  and after following the calibration process in the 2215 service manual, all is good again.

ETA: Now I remember that the atten knobs have to be removed to get the attenuator board out, and the switch itself taken apart because the diode is underneath it. But it's easy, only needs one Allen wrench and a screwdriver and nothing goes flying out.

[MileHigh]

Bill:

Big speed, is your rotor based on the bearing for the spinning tape heads from a VCR?  For a small pulse motor that's probably one of the best ways to go.  You can probably get a VCR for $5 at the Sally Ann or a recycling center these days.

The real answer would be found out with your scope.  Perhaps it's related to the turn-on turn-off feedback mechanism in the drive coil pulse for a conventional Bedini motor.  Suppose at low speed there are 10 pulses per magnet pass and as the rotor speeds up that goes down to say three pulses.  But those three pulses are skinny, and as you play with your pots you "fatten" those pulses and as a result the rotor speeds up some more.  Something like that.

It's arguable that when you play with a pulse motor and just measure the average current consumption and the RPM those are the "symptoms" and the pulse motor is just a black box.  The "causes" are what's going on inside the black box, to be discovered with your scope.

I will repeat again, a pulse motor is just an exercise in how signals react in time.  It's pretty much the same for any electronic circuit, they are all based on timing.  How well is your transistor working?  Why is your transistor hot?  Why is your transistor blowing?  Why does one type of transistor work well and why does another type of transistor suck in the same circuit?  All of these questions are answered with your scope and analyzing what is happening with respect to time.   Perhaps dozens and dozens of times I have suggested to experimenters that they use their scope to investigate and construct a timing diagram on paper for their circuit and it never happens.  It's frustrating but that's just the way it is.

Think of all of Sterling's 39 (or whatever the count is now) alleged free energy motor-generator systems that supposedly "harness the wheel work of Nature."  There is no reason that you couldn't construct timing diagrams for each and every one of them.  If they were real, the proud inventor should be able to point to a pulse on the timing diagram and say, "This pulse is precisely where the over unity is manifesting itself."

MileHigh