Kapanadze Cousin - DALLY FREE ENERGY

[verpies]

is there something that can build up to say 4.5V then have a voltage drop of 0.7 until the input is less than 0.7?

A Thyristor crowbar will do that.

[hoptoad]

Is there a way to build up to a voltage and then have that voltage released?


Like a zener will reverse at say 3.3, but it will still be a 3.3v drop in the current... is there something that can build up to say 4.5V then have a voltage drop of 0.7 until the input is less than 0.7?

You could also try an SCR - with a zener and/or resistive divider network to control the base of the SCR.

[Vasiliy Buslaev]

BTW: What russian forum has the latest news on Dally's v2 device?

So far the silence

[Black_Bird]

@d3x0r

An uninjunction  transistor will do that at a low current level, for example, a 2N2646. Also, you could do that with a comparator driving a power bjt or MOSFET if you need power.

[Osiakosia]

That's my point!  A saturable transformer is difficult to match. 
Its ferrimagnetic core has many parameters that need to be carefully tuned (e.g. dimensions, the AL value, BH characteristic - saturation point, permeability, frequency response).
You cannot just write: "use a 3cm OD ferrite torroid with 12 turns of wire" and expect it to work as advertised just because it worked for you or someone else.
The results are unpredictable unless you use the same core.

@Hoppy
I agree, but do you know where to obtain exactly the same core as Dally's?

If you mean the ferrite in nanopulser M6000HM 7*4*2
So today I found only M600 , M1000 and M2000HM permeability . Dimensions is the same 7*4*2 .
Dally wrote that we can use M3000HM . Not so far from M2000HM .

Regards