In this tutorial, I will show you how to construct a simple, cheap, and powerful Ultra-Violet Torch for all your UV illumination needs. This project is beginner friendly and requires only basic soldering skills.
Lets get started!
Step 1: What You Will Need
Components you will need for this project include:
- x2 Ultra-Violet LED's. (I purchased mine from Radio Shack for under 2 bucks.)
- x1 100-Ohm Resistor (Again, from Radio Shack. 99cents for a pack of 5.)
- x1 DEAD 9v Battery (or purchased 9v battery clip)
- x1 WORKING 9v Battery
- Basic Soldering Equipment.
Step 2: Extracting The 9v Terminal Clip
Using your pliers, Carefully peel the shell of the 9v back, and expose the cells inside the protective covering. In this step, we are going to extract the terminal clip, which will be the base of our project.
Step 3: Warm up the soldering iron- Construction Begins
The first part of this step includes determining the Negative (-) contact on our freshly extracted clip. When dealing with 9v batteries, the large contact is Negative, and the small contact is Positive. But beings that the terminal clip is going to connect to our working 9v battery, the contacts for the clip we extracted are reversed. The small contact connects into the large contact, and vise versa. Identify the Negative (-) contact on the clip we have just extracted (the small contact of the two) and begin soldering the 100-Ohm Resistor to its corresponding contact point on the back, trimming the resistors leads as needed. Refer to Picture.
-Note: Be generous with the amount of solder to get the resistors lead firmly connected. I had a hard time getting it to stick well with minimal solder. Adding more will do the trick.
Once the Resistor is secured, bend it downward also bending the un-soldered lead parallel to the resistor. This keeps the circuit organized and compact.