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AUDIO FREQUENCY LIGHT MODULATOR ELECTRONIC DIAGRAM

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AUDIO FREQUENCY LIGHT MODULATOR ELECTRONIC DIAGRAM

Light has function to replace cable from audio source to speaker. Transformer X2 is utilized to lock the audio signal. VR1 works as the amplitudo modulator from the T1 signal output.

Parts list :
  •     Resistor R1:  47k ohm
  •     Resistor R2 : 22k ohm
  •     Resistor R3 : 220 ohm
  •     Diode D1-D7 : 1N4001
  •     VR1 : 1k ohm
  •     Polar capacitor C1 : 470 uF/25V
  •     Polar capacitor C2 : 1 uF
  •     Capacitor C3 : 0.1 uF
  •     Transistor T1-T2 : BC148
  •     Transformer X1 : 220 V AC/0-12V AC
  •     X2 : AF output
  •     Transistor SCR1-SCR2 : BA654


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