•  
  •  

Audio Light Modulator

Audio light modulations add to the enjoyment of music during functions organised at home or outdoors. Presented here is one such simple circuit in which light is modulated using a small fraction of the audio output from the speaker terminals of the audio amplifier. The output from the speaker terminals of audio amplifier is connected to a transformer (output transformer used in transistor radios) through a non-polarised capacitor. The use of transformer is essential for isolating the audio source from the circuit in The sensitivity control potentiometer VR1 provided in the input to transistor T1 may be adjusted to ensure that conduction takes place only after the AF exceeds certain amplitude. This control has to be adjusted as per audio source level. The audio signal Proper earthing of the circuit is quite essential. The diode bridge provides pulsating DC output and acts as a guard circuit between the mains input and pulsating DC output. Extreme care is necessary to avoid any electric shock

If there are any problems please contact webmaster@electronic-circuits-diagrams.com

Please share & like

Wholesale Lot of (8) Intel i3 i5 i7 XEON CPU PARTS AS-IS Processors REPAIR ONLY
$0.99 Wholesale Lot of (8) Intel i3 i5 i7 XEON CPU PARTS AS-IS Processors REPAIR ONLY picture
LOT OF 2 INTEL XEON SLACB CPU/MICROPROCESSORS E5310
$19.99 LOT OF 2 INTEL XEON SLACB CPU/MICROPROCESSORS E5310 picture
Avere Rack Server SuperMicro X8DTU-6+ Intel Xeon E5645 2.4GHz DDR3 148gb
$499.9 Avere Rack Server SuperMicro X8DTU-6+ Intel Xeon E5645 2.4GHz DDR3 148gb picture
Supermicro Rack Server SP3000-SR Intel Xeon E5520 2.27GHz DDR3 48gb Gigabit Ethe
$299.99 Supermicro Rack Server SP3000-SR Intel Xeon E5520 2.27GHz DDR3 48gb Gigabit Ethe picture
Supermicro Rack Server X8DTU-6+ Intel Xeon E5645 2.4GHz DDR3 148 Gb AV1100113002
$499.95 Supermicro Rack Server X8DTU-6+ Intel Xeon E5645 2.4GHz DDR3 148 Gb AV1100113002 picture