0 12V to 48V DC-DC converter

This converter is powered by a 12V battery and and has a 48V DC output and can deliver
a power up to 12W. This converter can be used to power a wireless modem.

12V to 48V converter

Bill of materials:

Resistor- 120 ohms 5W
Transistor- 2n3055 or similar
Capacitor- 470n cap preferably be mylar type
transformer -  12-0-12 to 48V
Diode -D1 D2 D3 D4 in4002 or any atleast 1A 100V type
C3 is atleast 22uF capacitor but the higher value the better