This page features a replacement circuit for the LM3909 LED Flasher / Oscillator using discrete components. The circuit is functionally the same as the integrated LM3909 but has a minor variations in values of the components used. If you like to use the integrated circuit LM3909 build be Flasher Circuit. But may get into trouble […]
Posts tagged Lamp 3V
Audio Amplifier Circuit using uPC1277H
Audio Amplifier Circuit using uPC1277H
Bass power amp
Bass power amp using MJL4281, BD139, BC559
10A Stabilized Power Supply circuit
3A, 5A, 10A Stabilized Power Supply circuit LM723, 2N3055, 3055T
Circuit diagram Power Supply with good stabilization.
The power supply should be capable of supplying the maximum current required with good stabilization. I used commercially available 40 – 0 – 40 5A transformer. The transformer have 6V, 9V, 12V and 22V windings also. The transformer cost me around Rs: 370. Power supply provides 110 Volt 2.5 Amps or 55 Volt 5 Amps. […]
