0 simple iPod charger using 6V to 9V battery

This simple ipod charger is powered by a 6V battery or a 9V battery.
This charger is easy to construct even by a non-electronic inclined
person.The charger delivers 150mA to 200mA current to you cellphone
or iPod.
6V to 9V charger schematic

USB pins
The positive output of the charger is connected to pin 1 of the USB while
the charger's negative output is connected to pin 4.

Charger part list :
1. R1 is 390 ohms for 6V or 1.5K for 9V battery
2. Zener diode is 4.7V rated 1W
3. Transistor is any general purpose type


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