Sucahyo Stingo Oscillator Experiments

[SkyWatcher123]

Hi all, I have modified the circuit a bit.
The only thing changed, is the oscillator is between the negatives, like the rene-emf charger circuit.
Though still using the stingo oscillator circuit, with just a single diode off NPN collector to positive
of charge battery.
The positive of 19.5 volt input is connected to the 12 volt positive of charge battery.
So the oscillator is only seeing the voltage difference between the input voltage source and the
charge battery voltage, or 7.5 volts and varying.
This circuit change has boosted output and efficiency.
Also planning to build much larger coil, to experiment with.
The other benefit, is this style of circuit, can still be used to charge 1.2 volt nimh cells, as the
potentiometer can be adjusted to lower input power levels.
Experiments continuing.
peace love light

[SkyWatcher123]

Hi all, here is the latest circuit, it is splitting the negatives and has much greater output
and efficiency for a similar input power.
The coil and core used, should have high inductance, yet be within a range of .8-3 coil ohms,
though that may vary, depending how much inductance the core has.
And again, be aware, only certain NPN/PNP combos will work together, since the PNP
transistor is backwards from typical orientation.
So, perhaps a coil you think will not oscillate, will oscillate, with the right transistor combo.
Experiments looking much better.
Comments welcome, anyone testing these circuits.
peace love light 
Edit: Forgot to mention, the 2 coil layers, are wound on top of the stacked (solenoid wound)
ferrite toroids.


https://i.postimg.cc/SNvmdX4G/Stingo-splitting-negatives-Rene-emf-charger.png

[SkyWatcher123]

Hi all, I'm not sure why the Stingo/rene-emf style charger is not charging the battery as well as the standard
Stingo, with modified full wave bridge combiner.
Though that is what I'm observing, so here is the circuit i am testing at the moment.
I moved the potentiometer to the PNP base connection, this frees up the clutter on the NPN base
connection line, for better base triggering.
peace love light


https://i.postimg.cc/Hs0RFj9c/Stingo-oscillator-version-2-0.png

[Rama]

Hi Skywatcher from Italy,
Thanking you as far as you are offering in an opensource clearly, detailed and including even for those who know little or nothing electronics as I am, being Italian with very little knowledge of English and considering the not so good translation of the translator, I ask you for help To understand some features of the last STINGO Oscillator circuit version 2.0.

Not seeing the photo of the coil in Solenoid wrapped in the impilation of the Toroids in Ferriti, is a further description and or photos in the winding and the series connection of the 2 two -way coils?

Regarding the Mur460 diodes, I recommend me a specific or generic any one based on the following list of the supplier?:
https://eu.mouser.com/c/semiconductors/discrete-semiconductors/diodes-rectifiers/?q=MUR460

Does the land connected to the transistor NTE52NPN corresponds to the battery negative?

Forgive me for such requests because in addition to not understanding the automatic translation in Italian well, I know very little electronics.

Hoping for your help,
Good operations in synergy with cosmic creation

[SkyWatcher123]

Hi Rama, The coil is two layers of 18awg. magnet wire, the layers are bifilar wound, meaning, two 18awg. magnet wire strands coiled at the same time, until you have two layers.
Then, the bottom bifilar coil layer is wired in series, same with the top bifilar coil layer, then each of those bifilar coil layers are wired in series with each other.
All coil strands are wired so magnetic fields compliment one another, meaning no bucking of magnetic fields in this design.
Any ultra fast diodes should work fine.
The emitter of the NTE52 NPN is connected to the input power supply negative rail connection.
I will be continuing experiments again, and i will be focusing on using the speaker wire, spiral pancake coil for an oscillator design, as i feel with the right circuitry, we may be able to observe some resonant effects.
Here is a picture of the ferrite toroid stacked core and coil, with the 18 awg. speaker wire pancake coil underneath, not in use at the moment.


(https://i.postimg.cc/CZFZBMXv/stacked-ferrite-core-with-2-layer-18-awg-bifilar-magnet-wire-coil.jpg)


peace love light