In this instructables iam going to say how to make bulb in pencil lead. during the process the lead can reach upto 300°¢ be carefull while handling
Step 1: •°Components Required•°
* Pencil Lead
* Testube
* Meatel cap X 2
* Big Needle X 2
* Small metal to hold lead
* 15 V DC supply
* Testube
* Meatel cap X 2
* Big Needle X 2
* Small metal to hold lead
* 15 V DC supply
Step 2: °•Use 0.7 Lead•°
I used 0.7 pencli lead an 15V Dc
you can also use other leads and battry's.
you can also use other leads and battry's.
Step 3: °•Set Up°•
Take the Testube and break the bottom of the tube and make hole in the centre of the metal cap insert the needle. Know you need to make holder to hold pencil lead i solderd the ball point pen nib at the end of the needle and insert the lead and close the testube with metal cap.
Step 4: •°Glowing Lead°•
