1.5v LED flasher
This circuit is a LED flasher that run by 1.5v AAA battery. Flashing speed can change by changing C1. The circuit consume low current, 20mA when LED be turn ON. Parts list: Transistor BC547 Transistor BC557 LED Resistor 680ohm (2pcs) Resistor 39 ohm Resistor 330K Capacitor 10nF Capacitor 2uF Capacitor 470uF 1.5V Battery