Led and Zener Diode Tester

This device displays the forward voltage of an LED or Zener diode. Assembly is straightforward—use the included wiring diagram for reference.

Safety Warning:

Li-Po batteries can be hazardous if mishandled. Always use a proper charger board, observe correct polarity, and never short-circuit, overcharge, or leave the battery charging unattended. Discontinue use if he battery becomes hot, swollen, or damaged.

**IF YOU ARE NOT FAMILIAR WITH HANDLING LI-PO BATTERIES, SEEK ADVICE FROM A KNOWLEDGEABLE TECHNICIAN. IMPROPER USE CAN CAUSE FIRE OR INJURY.**

Components required:

• 2 × M2 × 5 mm hex cap screws

• 1 four-digit voltmeter with isolated 3-wire power supply

• 1 boost converter (XL6009)

• 1 Li-Po charger board

• 1 × 10 kilo-ohms resistor (1/2 W)

• 1 Li-Po battery (~600 mAh)

• 1 tactile switch (12 × 12 mm, 5 mm button height)

• 2 alligator clips (red for +, black for –)

• Assorted wires (red and black recommended)

• Heat-shrink tubing

• Glue (hot glue recommended)

Set the boost converter output to approximately 30 V. Include a strain relief for the probes, such as a knot in the wire. Glue the battery in the back of the Electronic Layer.

Support material is not required. An infill of 20% is recommended.

This object's main web page is: https://www.ctheroux.com/led-and-zener-diode-tester/.

This object was designed using Solid Edge Community Edition.

You can request the source files on the page listed above.