Sunday 6 October 2013

LONG RANGE FM TRANSMITTER ELECTRONIC DIAGRAM


LONG RANGE FM TRANSMITTER ELECTRONIC DIAGRAM

This circuit works optimally by adding RF amplifier and antenna. Here is the schematic diagram :

Parts list :


  •     Diode D1 : BB109
  •     Resistor R1 : 10k ohm
  •     Resistor R2 : 100k ohm
  •     Resistor R3 : 180k ohm
  •     Resistor R4 : 4K7
  •     Resistor R5 : 15k ohm
  •     Resistor R6 : 68 ohm
  •     Resistor R7 : 470 ohm
  •     Resistor R8 : 39k ohm
  •     Resistor R9 : 10 ohm
  •     VR1 : 47k ohm
  •     VR2 : 22 ohm
  •     Capacitor C1-C3, C8 : 0.1 uF
  •     Capacitor C4 : 4.7 pF
  •     Capacitor C6 : 0.01 uF
  •     Capacitor C7 : 5.6 nF
  •     Capacitor C9 : 100 pF
  •     Transistor T1: BF494
  •     Transistor T2:2N3866
  •     Trimmer VC1-VC2 : 50p
  •     L1 : 4 round 20 cables SWG in plastic with 8mm diameter
  •     L2 : 2 round 24 cables SWG
  •     L3 : 7 round 24 cables SWG in plactic with 4mm diameter
  •     L4 : 7 round 24 cables SWG in ferrid bead


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