High voltage pulse warning grid

It can output tens of thousands of volts of high-voltage pulse voltage, which is adjustable from dozens to hundreds of times per minute
(by adjusting the potentiometer RPi). Each pulse has a power of about 12mA and a discharge energy of less than 4J. It can also alarm when there is a fault discharge
.
    It uses a single-junction transistor relaxation oscillator as a trigger circuit. Cs is the energy storage capacitor. SB is the alarm release button. Transformer
T2 can be used with TDJ-6/0. lkV or 10/0. lkV, 640V. A voltage transformer is used instead, with one end of the secondary connected to ground.