Kapanadze Cousin - DALLY FREE ENERGY

[itsu]

...and you confirmed this by observing the voltage across the emitter and collector or across the 1Ω CSR?  - was it 42V or 0V, respectively?

Do you drive the base of the KT926A with your MOSFET Driver's output, or with the 74HCT02's output ?

i confirmed this by observing the voltage across the emitter (ground) and collector.
The pulse went all the way to 0V

I only drive the base of the KT926A with the 74HCT02's output

I will make a video tomorrow.

Regards Itsu

[Hoppy]

Hoppy, when i install the toroid (6 turns) in the collector line together with a 1 Ohm CSR (and a Schottky flyback diode across the 6 turns as its my last KT926A which i don't want to loose), and running 4.6Khz repetition frequency and on my max. pulse width of 765nS, then at 42V (max. of my PS) the transistor is fully open.

Regards Itsu

Itsu,

I think you are in the ball park as we need to be in at under 1uS pulse width but you need to carefully monitor power dissipation to keep at a safe level for the KT926 as rail voltage is increased. Don't reduce the base resistor below 20R, as I think this is may be the optimum value for a 150V rail. Pulse width should continue to decrease. As you appreciate, keep the rail below 150V, the max C/E for the KT926.

Regards
Hoppy

[d3x0r]

a smaller toroid would saturate faster....

[verpies]

By the way, the casualties in building this Dally replication up till now:

OMG!
Shit happens, though...

[verpies]

a smaller toroid would saturate faster....

Yes, but how do you know that Itsu has a problem with his 16.6x9.4x6.9mm toroidal core not saturating?