Solid state Bedini?

[antimony]

Hi, i have tried to get a Bedini energizer working for about one year now, but never got it working. Until i recently changed the 100 ohm resistor on the daftman circuit for a 100 ohms 5W resistor, and a 1K ohm linear potentiometer instead of a log one.
I still don´t get it to spin the bicycle wheel, but it got my magnetite core and coil vibrating and buzzing.
It charges the batteries really good, and when i look at it on the oscilloscope it seems to work just fine.

What i wanted to ask is if someone maybe could shine some light on why i didn´t got the circuit working until i changed the pot and the resistor? Can it be just this simple problem that been holding me back these months?

Also, i am interested in magnet bias tuning. Where can i find some info on this?

Thanks in advance.

/F.

[citfta]

Why did you use magnetite for your core?  Daftman and John Bedini both say to use welding rods for your core.  If you can't find welding rods then you can use electric fence wire as long as it is not aluminum.  Even coat hanger wire will work.

It most likely started oscillating after you replaced the 100 ohm resistor with the 5 watt one.  The larger wattage resistors are almost all wirewound  types.  This makes it even easier to get the circuit to self oscillate which is what yours is doing.  You need to replace the core material and replace the wirewound resistor for a normal resistor and then start over trying to get it to work.  I have helped probably 15- 20 people get theirs working by getting them to follow some pretty simple steps.

If you make the changes I suggested and don't get it to work then I will be glad to help you get it working like it is supposed to work.

And one more question.  What kind of magnets are you using?  You need to be using ceramic magnets for this circuit, NOT neos.

If you can post a picture of your machine that will also be a big help in identifying why your machine might not be working.  But please size your picture to fit on a normal page for this forum.

Carroll

[antimony]

Why did you use magnetite for your core?  Daftman and John Bedini both say to use welding rods for your core.  If you can't find welding rods then you can use electric fence wire as long as it is not aluminum.  Even coat hanger wire will work.

It most likely started oscillating after you replaced the 100 ohm resistor with the 5 watt one.  The larger wattage resistors are almost all wirewound  types.  This makes it even easier to get the circuit to self oscillate which is what yours is doing.  You need to replace the core material and replace the wirewound resistor for a normal resistor and then start over trying to get it to work.  I have helped probably 15- 20 people get theirs working by getting them to follow some pretty simple steps.

If you make the changes I suggested and don't get it to work then I will be glad to help you get it working like it is supposed to work.

And one more question.  What kind of magnets are you using?  You need to be using ceramic magnets for this circuit, NOT neos.

If you can post a picture of your machine that will also be a big help in identifying why your machine might not be working.  But please size your picture to fit on a normal page for this forum.

Carroll

I have tried a lot of different cores, and this was the core that used when i discovered this.
I tried a few other different coils earlier. One air core, one with welding rods, and one other with magnetite. The only one that oscillated was the one with the magnetite.

I will try to find another 100 ohms resistor better suited, and try the coil with the welding rods again.

I am only using ferrite magnets on the wheel. I have 12 of them.

I will try to post a picture of the circuit later this evening.

Ps. how does one tune a solid state bedini? I googled this but i am not sure yet.

I appreciate your helping me.

[citfta]

Do you mean tune it like it is now with it oscillating?  Or do you mean tuning it when it is turning the rotor like it is supposed to do?  A solid state Bedini does not have the rotor.  Yours is acting like a solid state Bedini because it is oscillating like one.  But you are missing the excitement of actually seeing something you built run like a motor.

You said you would post a picture of the circuit.  Did you mean the schematic or did you mean a picture of your rotor and coil and circuit?  I am very familiar with the circuit.  I would like to see your actual machine with the rotor and coil and wiring.

I am glad I can help you.

Carroll

[mscoffman]

You could try building your wheel one step at a time.  12 magnets would seem to be too many to start with. I'd start with two magnets balanced on a bicycle
wheel. If you could use "plastic clips" to hold them in place. You will need to determan which are the opposite pole faces on the permanent magnets. Put the same
pole face outward on all magnets. Then using a 6VDC battery or so connect your primary windings through the batteries and a micro-switch. By giving the wheel a
slight rotational spin you can press the microswitch at just the right time, when the magnet is coming towards the coil, and the wheel should slowly increase in rotational
speed. Once you get good at spinning the wheel up I'd put the 2n3055 NPN bipolar power transistor into circuit with the 100Ohm resistor in the base circuit with the switch
and the collector and emitter with the coil and the battery. You should be able to spin the wheel  up by switch identically but now the transistor has decreased the current
flowing through the switch.  You might now want to increase your magnets to three (120degrees) or four magnets. And boost your power supply to 12VDC. Be careful
not to overheat your coil, burn wire insolation and produces shorted turns. If you measure the resistance of the coil in ohms with a DVM you can write it down for
checking that it stays the same in the future. OK now it's time to test the sense winding on the coil ( the smaller guage wire ). Complete building the Bedini Circuit
and replace the connection to the coil with a connection to a small light bulb, 500ohms and a LED, or your DVM meter. Now give the wheel a small spin and
every time the magnet approaches the coil the light bulb should get increasingly bright as the magnet approaches, but then right near the point of closet approach
the light will turn off! The sense winding sees the magnetic charge approaching the coil so it turns the transistor on to attract it some more, the wheel speeds up
but then right at closest approach the sense winding sees the magnetic charge moving away again and cuts the transistor off strongly. If the circuit turns off
during approach and  turns on during move away, then simply reverse the sense coil. Now connect coil back in place of the light bulb and your Bedini wheel should
work. One problem with the Bedini Wheel is it not self starting, so a hand spin up is usually necessary. Now you can begin to tune the wheel for optimal operation. 
By solving any problem on the spot, as you go, you make it almost impossible for it all not to work at the end.