Blinker, Through-Hole
author: AVB
2 layer board of 1.02 x 1.02 inches (25.8 x 25.8 mm)
Uploaded:
June 08, 2013
Shared:
October 10, 2016
Total Price:
$5.15
A simple “astable multivibrator” circuit designed for testing through-hole soldering techniques. Requires two transistors (2N2222 or equivalent, TO-92,) two LEDs, two capacitors, four resistors, and a 9V battery clip. Connect battery to test assembled circuit.
Using 1uF capacitors, 1k resistors, and 1M resistors, the LEDs blink rapidly, but not rapidly enough to call it flickering.
Two-layer board. Designed with KiCAD.
A simple “astable multivibrator” circuit designed for testing through-hole soldering techniques. Requires two transistors (2N2222 or equivalent, TO-92,) two LEDs, two capacitors, four resistors, and a 9V battery clip. Connect battery to test assembled circuit.
Using 1uF capacitors, 1k resistors, and 1M resistors, the LEDs blink rapidly, but not rapidly enough to call it flickering.
Two-layer board. Designed with KiCAD.
