WARNING: Tube/Valve amplifiers use potentially LETHAL HIGH VOLTAGES.
Building, troubleshooting and testing of these amplifiers should only be
performed by someone who is thoroughly familiar with
the safety precautions around high voltages.
The blue graph from 2019 prototype is the primary winding current.
At that time, I was looking for the alternative method to generate 250 kHz driving signal and the 555 timer IC was used with the help of some gate driver iC.
