The circuit shown here is of the simple radio transmitter which is used to transmit a voice signal up to 20M and is listening to a radio resistor. The complete circuit is built around a single transistor followed by a micro-phone and an MW antenna for any old radio. If the sound is not clear at the receiver, then adjust the ferrite core of the MW coil and fixed it where clear sound listens.
Check out other interesting projects based on FM posted on bestengineeringprojects.com
- Arduino FM Receiver Circuit using TEA5767
- Arduino FM Transmitter
- Troubleshooting of FM transmitter
- TV | FM Antenna Installation
PARTS LIST OF SIMPLE RADIO TRANSMITTER
| Resistors (all ¼-watt, ± 5% Carbon) | |||
| R1 = 10 KΩ
R2 = 47 KΩ |
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| Capacitors | |||
| C1 = 10 µF, 16V (Electrolytic Capacitor)
C2 = 0.01 µF (Ceramic Disc) C3 = 470 pF (Ceramic Disc) |
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Semiconductors
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no DC path for the Collector current?