This is 1.5 Watt FM Transmitter circuit. This circuit should be able to cover 1-2 KM range.
Components List
| R1=220K R2=4.7K R3,R4=10K R5=100ohm | C1,C2=4.7uF Electrolytic C3,C4=1nF C5=2-15pF C6=3.3pF | Q1=BC547C Q2=2N2219A P1=25K MIC=Electret Condenser Type |
P1 act as condenser microphone volume level. For FM, coil will be small. Use thin gauge enamel magnet wire. the diameter of coil will be a couple mm: use ink tube from pen to form, and try 8-12 turns. Small inductance coils make for much guess work.
send this diagram
Hi emmanuel pls i need 1000w fm transmitter circuit diagram and power amplifier for school assingments. Thinks from emmanuel
How do I make this coil Please tell me
this is nothing more than a power oscillator running or using this type of design for anything more than testing within the home is very unwise. the circuit does cause very bad harmonics witch causes RFI on the upper and lower bands. i.e transmitting@100mhz causes RFI @200mhz ,300mhz, 400mhz and carries on the same on the lower bands as well.. aslo with this type of circuit the final transistor(2219) gets too hot causeing the transmission freq to drift -/+ 2-3mhz. i have many designs i have made and still use today. if any one would like a diagram. just let me know mail me dee_stew77@yahoo.co.uk
i want +ve,-ve of c1,c2 and about coils
i want +ve,-ve of c1,c2 and about coils
mommad786@yahoo.com
i was given a project topic to build am fm reciever 100w.my problem is i dont know were to start,wat i need and the components needed to build it.plz cam u help me
please I’ll be happy if you can send me this circuit diagram with the polarities of the capacitors. please Ineed this for my school projects
(+234)8063409127
Thanks for all emails for diagrams i am now selling transmitter and transmitter kits 1.0watt to 50watt Please email me if you with to buy thanks
Are there more than 75W tx FM circuits? I need it.
2-15pf is not avelebal
actually, they are available on market…
need a strong AM reciever and transmitter of same freq..