This is what makes the UJT useful, especially in simple oscillator circuits. Working of Mock Flasher LED. UJT 2N 2646 is used as a simple oscillator with the oscillating components R1 and C2. The LED ...

led flasher 3 Articles . The ... also does his customary reverse-engineering of the circuit, which is just a simple flasher powered by USB-C. ... The internal schematic is in the data sheet ...

The “two flashing led” circuit is designed for 9 Volts but it works at lower voltages too. In this design we used red leds but by changing the series resistors R1 and R4 you can also use different LED ...

He discovered parasitic circuit formed by the neon switch backlight lamp (equivalent of the current source in here) and by the LED rectifier capacitor. LED’s switching converter starting point acts as ...