Bedini Solid State Oscillators

[Aaron]

simple oscillator

Hi George,

Yes the 555 is to pulse the cap bank to a battery.

The easiest way to get a SG circuit to oscillate is to keep increasing the resistance at the base of the transistor until you hear the coil buzzing like a mosquito. You might need to have a magnet just sitting on top of the coil.

This isn't the optimum tuning method to do this but is the fastest way to just have it oscillate. If you're using good size coils, just be careful that you are monitoring your caps so they don't get overcharged because they can rise pretty quick.

That is so true about the elephant analogy!

Thanks again Aaron

I did see that in the post. I am just now learning to read schematics so I am a little slow on the uptake. I kept being thrown off by the 555 chip in the lower left side. I guess you were using it to make sure the caps were discharging in a timely manner. I will get up to speed soon, especially with a group of experimentors like you have hear. We are a dying bread. Most people just like to eat what they are fed. I like to see where the boundries really are. I tell people a story about a baby elephant that is chained to a tree to keep it in place at the circus. Early on he pulls and pulls on the chain and learns that he is unable to break his bonds. As years go by, and he grows into a massive beast, they are able to keep him in place with a little rope tide to a stake in the ground. It is no longer the rope that holds him in captivity. He is a prisoner of his own beliefs!

Question everything!!

[Aaron]

self oscillates

Hi George,

This schematic shows one variation:

http://www.energeticforum.com/renewable-energy/366-bedini-solid-state-oscillators.html#post4023

The part of the schematic on the right side of the coil core self-oscillates.

quick question

How do you get rid of the 555 timer and get the coil to self ocsillate?? I would like to see a drawing of some of the set up if that is not asking too much.

Thanks,

George

[Aaron]

trigger

Aaron,

What trigger signal speed are you using; secs? milliseconds?

- Schpankme

Hi,

I have everything packed up...getting ready to move. When I set up again, I'll take videos of this and put it on youtube.

[ren]

Terence, I think that the solid state may perform better. I am not sure if this is correct but I have found that my sg doesnt charge as well as the run battery gets low. I think this is because the radiant seeks the impedance of the flat battery and as your run gets low and your charge gets high it doesnt transfer as efficiently. Capturing into a cap would Isolate this effectively. My window motor with sg circuit has a cap and scr on the back end and it will charge great, even when the run batt is low.

Please correct my simpleton explaination if someone knows better.

[Schpankme]

Just been tinkering with the oscillator.
I'm not posting diagrams just yet...tweaking it further.
It is oscillating with that input from caps while it is disconnected from the input battery.

Aaron,

What trigger signal speed are you using; secs? milliseconds?

- Schpankme

[terence123]

difference between ssg and solid state

Hi,

actually, looking at the two different schematics of an SSG and solid-state charger, it looks like the SSG has a direct feedback of the battery's state (impedance) while a solid state has not.

I'm trying to bring back a sulfated old battery with a solid state charger. Now it strikes me that it would be better to have a SSG doing that because the circuit will adapt while the battery is improving, while a solid state has always the same impedance, since it always sees the same capacitor and the 3rd (output) coil has no feedback into the first oscillating circuit.

Any insights or comments on this?

Terence.

[Ewhaz]

Here's also an image of the waveform off the charging side. I'm using the neon lamp and scr setup for my capacitive discharge charging side.



I think this is what every one was speaking of, the voltage spikes as well as the 'h' wave form. The measurements are not to scale however.

[Ewhaz]

Now that I have the system running, I had thought of something that I wonder if any one has tried yet and maybe knows the answer too.

Using multiple coils, not just one trifilar or quadfilar coil, but say 2 quadfillar side by side would it be possible to use the one self oscillating circuit to run Both coils? Is it even possible?

If your going to charge a large bank of batteries it might require more than one coil to charge them all. Using one coil strictly for the oscillation would allow the other coils to be used strictly as slave coils for output, freeing up at least 1 winding on each coil to that effect.

[Ewhaz]

Got it working

I just finished assembling the oscillator yet again, this time with 1/2 W resistors of the value I needed (one or two as opposed to multiple resistors to get my values) and it works!

I have a neon lamp hooked to one of the output coils, it lights constantly with the 9V battery to the unit. I don't know the value of the lamp, but it only lights on a field collapse on the coil. I don't have the equipment to measure the voltage spikes yet, but I'll get there sooner or later.

Now I just have to wait on my batteries, and a few other componants and I can begin building the capacitive discharge charger side of the circuit and I can begin testing and perfecting it. I'm excited, I've been waiting MONTHS just to get this far with my limited budget. As soon as I do this proof of concept run, I'll post the results. After that I have other projects this Bedini coil is going to help me do.. SO many projects, so little time!

I also found my camera.. Now If I can just find that upload cord..

Found it... Heres some pictures.

My coil, with the neon lamp lit. I think the lamp is a 110v lamp.


Here's an image of the output I measured with my Oscope. The voltage isn't accurate because of the limiter to protect my computer, but it shows that it is working.

[terence123]

Hi,
I use a 24awg 450turn trifilair, with 2n3055 transistor. Works good. The coil was made from an old waterpump-motor from a washing-machine. The core consists of stacked strips (which was a long job to remove without damaging). I just start to charge battery (4Ah,12V). I dump around 100-120V in there (4.7 microfarad/250V cap).
Timing of 555 gives strange effect on oscilloscope. with slowing down the timing of the 555, the voltage over the cap increases, but it stalls at 120V. Dunno why it stops there.

[linesrg]

Problems with the BD243C

Ehwaz,

My best guess is that your BD243C is 'goosed' as we say here in the UK. I have had one of the p.46/ Fig. 33 oscillators running for a while now. Every time it has failed it has been the transistor. Stick a diode tester on it.

In my experience the circuit as shown is quite finely balanced and excursions, even small ones, from the values shown can have a big effect.

In due course you might like to try a MJL21194 based version. Use it with a 100ft 18AWG trifilar coil based on a Pittsfield sized spool with a welding rod core. You need to reduce the value of the three resistors around the transistor by a factor of 10 and leave all other component values as they are.

Note the base load resistor needs to be about 3W rated.

This device really kicks bottoms (polite phrase). Be careful if using a quadrifilar coil as I have, the unused strand has quite a kick to it!!

Regards

Richard

[Ewhaz]

Alright. I got enough of my components to build the solid state oscillator. The only problem is, it doesn't oscillate.

I have a bd243C using the resistor setup in the Free Energy Secrets book.

I've got the resistance set up kind of funky though, having to use several in series to get the values I needed (I had a bunch of assorted values on hand but not the exact values I needed). they are all 1/4 watt resistors, I'll be getting the right values later when I can afford it again.

I've checked my setup a few times to make sure everything is wired correctly and tested the transistor to make sure I didn't burn it already, however it is rated for 100v so there should be no problem. I'm using a solder less bread board.

I tried using a small standard 9v battery to see if it would trigger, which it didn't. The batter did however get overheated after a few minuets which implies a short of some sort. I can use the 9v to trigger the coil manually and I have a small neon lamp attacked to one of the output windings to verify its working. When the coil is disconnected the lamp does light up for a short time.

At first I didn't have the core completely filled with the welding rods, so I figured it was getting over saturated and keeping the transistor from oscillating. I finished packing it and tested it again, still nothing.

After the 9v didn't work, I also tried hooking it up Via a variable AC power supply put through a rectifier. I even dialed that in to 12v using my multimeter on the output. Still nothing seems to be happening.



I would post an image, but the information is from a copy written source.

[Mario]

Well, I have the right transistor thankfully, but I did notice the difference after you pointed it out. Maybe this was enough distortion so that the powers that be would leave it alone, who knows?

But yes, changing the duty cycle on a 555 would be a real pain. I'm assuming that the higher the frequency the longer the on cycle would have to be in order to allow it to reach saturation before the field could be allowed to collapse. Most likely this would require a lot of tuning. Still, at least its an option to explore later on circuits with different applications.

Still, what about the capacitor? The voltage on it is not listed for the charging side capacitor (not the timing). From what I've read, you have to be careful not to 'hit' the battery too hard, or it will cause a cascade effect that will cause the battery to explode, or at the very least be damaged. Is there a correlation between the type of battery to be charged and the maximum voltage that the capacitor can deliver safely?

Hi Ewhaz,

I'd take a cap rated in the 400-600V range from about 3 to 10uF. The voltage to the battery depends on the dump speed meaning the time you let the cap get its charge from the coil. I've noticed that the faster you dump the quicker the charge rate of the battery, even if the voltage is only about 30-40V. But I've also dumped at over 100v to the batt... I don't know what the max safe voltage is for a given battery, sorry.

regards,
Mario