Post by P.Q. on Apr 2, 2012 18:28:43 GMT -7
Source: www.instructables.com/id/LED-Light-Drawing-Pens-Tools-for-drawing-light-do/
What you will need::
Plastic Tubing - 5/8" outside diameter - 1/2" inside diameter
Plastic Tubing - 1/2" outside diameter - 3/8" inside diameter
1 LED
1 Normally Open Switch
1 20 ohm Resistor - size is determined using Ohm's law
3 1.5 volt Button Batteries
Heat shrink tubing
24 gauge wire
Electrician's tape
LEDs, switch, resistors, heat shrink and electrician's tape purchased at local electronics store.
What you will need::
Plastic Tubing - 5/8" outside diameter - 1/2" inside diameter
Plastic Tubing - 1/2" outside diameter - 3/8" inside diameter
1 LED
1 Normally Open Switch
1 20 ohm Resistor - size is determined using Ohm's law
3 1.5 volt Button Batteries
Heat shrink tubing
24 gauge wire
Electrician's tape
LEDs, switch, resistors, heat shrink and electrician's tape purchased at local electronics store.