How Mosquito Racket works?

Parts:

1. Power Supply

2. Oscillator

3. Transformer(Step-up)

4, Final mesh-nets

The circuit consists of a flyback topology transformer driven by a general NPN transistor 2SD965. The feedback coil of transformer is of 10 turns, the primary is of 40 turns and the output or secondary coil is of 450 turns (40:450). When this circuit is run by giving input of 3 Volts, the