Fusionchip's Bedini Feedback to Source!!!

[robbie47]

@groundloop,
Thanks for sharing that with us.
You might be right about the lead acid battery and its actual state.
Any plans for next steps?

I studied you circuit once more. One thing that strikes me is that once the transistor is switched on, either the 9 diodes or the transistor will consume something like 80 mA * 6.3 volts = 0.504 Watts, which is quite much.
I say either the transistor because if you can switch it on without having the collector current saturated. The collector - emitter voltage can be about 6 volts, so in that case you actually don't need the 9 diodes. In that case the resistor to the base of the transistor needs to be fairly high and the collector current would be less than 80 mA.

Did you run the circuit without the 9 diodes, or would that consume to much power in the coil?

[Groundloop]

@robbie47,

Your math must be wrong?

The circuit uses less than 10mA at 10 volt without the diodes running as a motor at high speed,
and less than 1mA at 10 volt without the diodes when running in solid state. Remember that
I ran the circuit in solid state (stopped rotor) from a drained 9 volt (160mA) battery. The start
voltage was 7,50 volt, and 5 hours later, the battery was drained down to 6,05 volt. A fully loaded
battery of that type should hold (8,4 V * 0,16) 1,34 Watt/h.

>>Any plans for next steps?

Yes. I will make two new single air core coils for a solid state oscillator. (No rotor or metal objects).
Then I will put the coils vertically with a distance between coils as per. Helmholtz.

Groundloop.

[robbie47]

@groundloop,
Sorry, I did not express myself sufficient careful.
The power consumption that I calculated is only occurring at the moments the transistor is switched on.
To get the average power consumption we have to divide it with the duty cycle factor.
We should be able to derive that from your oscilloscoop picture.

Remark on the 9 V battery: you meant 1.34 W/hour of course 

[Groundloop]

Hi,

Here is my Helmholtz Coils Oscillator battery charger.

Adjusted, the circuit uses 0,1 amp.at 12,00 volt from the lab supply.

I have two 12 volt 7 Amp. GEL batteries in parallel on the output.
Both batteries is charging well. Started out as 10,5 volt but has gained voltage up to 11,24 volt
in half an hour charging. The coils and transistor runs very cool. No heating in the circuit.

Now it is exciting to see how long it takes to fully charge both batteries.

Groundloop.

[AbbaRue]

I used to make my own sinkers out of lead. 
It is easy to melt with a propane torch, just use an old sardine can.
Then once you have melted the lead, pour it onto a flat surface to make thin sheets of it.
Then the sheets can be cut into small square lead plates.
Sulphuric acid is sold in hardware stores as drain cleaner.
Take the lead plates and seperate them with some fiberglass cloth and add water and acid.
That is how you can make your own small lead acid batteries.
This would prove the validity of the battery being charged.
A large lead acid battery holds so much charge that it makes it difficult to prove it is being charged.
So you need a very small amp hour battery.