Introduction: 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.
Step 1: Things Required
1] 560 ohm resistor
2] NPN transisor
5] battery snap
Step 2: The LED
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.
Step 3: The Circuit Digram
solder the circuit with the circuit digram.
Step 4: All Done!!!
you have made your current amplifier.
touch the both touch wires and the led glows brightly
without the circuit it will be very dim.
Step 5: Update
solder a 100k resistor between the base of the transistor and the touch pad