A Simple Current Amplifier

a amplifier of current . when we touch the wires it glows but without the circuit it will not glow brightly.you can make it on a pref board or without it i am making it with a pref board.

things required-
1] 560 ohm resistor
2] NPN transisor
3] led
4]9v battery
5] battery snap

you can use a diffused led if you want much of a glow . if you want a beam of light use a water clear type.

solder the circuit with the circuit digram.

you have made your current amplifier.
touch the both touch wires and the led glows brightly
without the circuit it will be very dim.

solder a 100k resistor between the base of the transistor and the touch pad