3v OU Flashlight

[Sergh]

Kolbasist, tell the author of the circuit on KT603A that he is Cat Basilio.

https://i9.banknn.ru/9dfbepofyfte3_gw7rwl.png
(from Soviet folklore)

[kolbacict]

A third-party radiation source is impossible because it is impossible to excite a closed core at a distance.

I agree with that.
Generation really is, if you apply a little power to different points.
even the LED lights up a bit.
but just take away the food, everything goes dead.

[rakarskiy]

My idea, a long-playing flashlight.
On a large core (not too long), wind the coil as follows:
excitation of L2 by a" thin " wire, taking into account the trigger L3, at the planned frequency, with periods up to the maximum saturation of the core.
Removable L1, simultaneously "flashlight", is made by section, the maximum possible, b wire in both halves, so that the reverse pulse voltage was 2 times greater than the excitation voltage. Capacity C1 selected according to the battery capacity and charged before starting the system. During ex, the battery is disconnected. C1 can be selected from three different tanks connected in parallel.
According to the already proven scheme, at the time of disconnection of the key current passes from the capacitor C1, through the winding L1, resistor R1, to the led and lights it. The spin of the current in the wire is close to zero. The field in the kernel also has a slight deviation from zero. In parallel, the current through the coil of the trigger L3 enters the base of the key, and it opens. When L2 is excited, the core is magnetized to the design state, at which point the key closes, and the core field is discharged into the capacitor C1 through L1, in the direction of self-induction inertia, according to Faraday current induction rules. The discharge voltage will depend on the formula for the EMF = V * W * L and the current formula I = EMF (L1) - U(C1) / R (L2)+ R(D1)+R (C1)
of course, the dynamics will drop to zero, and at some point the current will move from the capacitor along the chain through the led and the process will repeat.

Checking calculations.

[Sergh]

It makes sense to wind the coil only on very unusual "cores".
It would be interesting to use the Wiegand sensor as the core and secondary coil. For example, WG112:

https://belchip.by/sitedocs/wg.pdf

[Raycathode]

Yeah right!  (Armedbrain and ratarsky) Explain where the Extra energy is coming from! all I can see is losses with your set up, exp;lain your coil winding and how you encounter the effects of skin effect, Also with the flywheel energy will be lost with spin up and down inertia ect and friction ect, etcetera and then there is lens laws ect, you were saying about gutters and bodily fluids ect, well drink your poison of your own choice and be merry as you do.

Raymondo