Boo 😂 booster converter.Boo! it was like a nightmare when in my sleep watching electronic elements and trying to make another puzzle. Success came through the threshold voltage (5V) of the NOT gate IC gently trying to reach it through the 0k1 pot and magic 💖 is show up.The circuit start at 99% of the pot~65%of duty cycle if you wanted to drop at 45% just derate slowly to 1% the pot value.10/8/25 circuit is upgraded. potentiometer is missing and replaced with a ckick start switch (push button).