Some 1.5 v LED flasher circuits are available on the internet and ... The LED current is approximately 3 mA, so a high brightness LED is recommended. The discrete 3 transistor circuit would need a ...

Discrete Component Replacement Circuit For The LM3909 IC As the title says, first one is a replacement circuit for the LM3909 LED Flasher/Oscillator using discrete components. The circuit is ...

Today you can buy flashing LEDs; a simple two-lead component that requires only a power supply to produce even flashes of light. They look for all the world like any ...

This design describes how to light a string of LEDs of any color from a 1.5-V cell using just a few inexpensive components. The circuit ... standard discrete components, this LED driver can ...

Note, there is a flasher version 3 Current through component ... idea of the circuit My cunning idea (now proved to be not-so-cunning) was to have constant current supply to a capacitor and load it ...