diagram circuit

Voltage Booster Circuit Diagrams

This is voltage booster circuit diagram.you can get 24V from 12V DC.Q1 and Q2 are D1616.If you are unable to find D1616 You can use 2N 3055,C2236,SL 100.
Note

# For high current (around 5A) games use 2N 3055 transistor or more powerful Darlington pairs for Q1 and Q2.