1.5 Watt FM Transmitter
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..
THank’s 4 this fm transmitter circuit.plz.can u help me buy and ship the correct component 4 this work?
Thank’s
Alex.
in this ckt carrier is not available…..then how we modulate signal
please i need electret mic for my fm transmitter.any one who how i can get should please inform me.amobioke@yahoo.com
i need 5000watt or 2000watts invertor circuit convert 12v d.c to 220v a.c for small enterprise please try hard for me.isaac522002@yahoo.com
i am looking for a fm transmitter or circuit diagrams how to build one thanks to anyone who will email me at halfpint2470@yahoo.co.uk
i am looking for the components of an fm transmitter the materials needed to set up one or circuit diagrams how to build one i am making is for my assignment and also to widen my knowledge in electronics. thanks to anyone who will email me a shakorbantang@yahoo.co.uk
i need a radio receiver circuit diagram with built-in amplifier that is 3-9volts
I want +ve _ve of c1,c2 and how do i make this coil ?
thnak you for this circuit
can i just buy that coil? im having problem in making it
PLEASE HELP
Sorry but We cant get 2219 here. Which next may replace it?
if you know somewhere I can get a receiver diagram for this transmitter Please let me know @ erandahasithapriya@gmail.com
pls i need a transmitter and step by on how to develop an atm by pass
I HAVE ASSAMBLED IT,EASILY FOR MY SON PERFECTLY WORKING,I PUT IN SMALL BOX.ALL COST ME RS.130/ONLY.
I JUST ADDED .01CON.IN PARALAL,TELESCOPIC ANT.AND 9 V BAT. TO MAKE PORTABLE.
I am working on this project of a 1.5W FM transmitter circuit. Please tell me the diameter of the inductance coils that i can use in this project. Am looking forward to receiving your response.
how this circuit works..explain its working
22 SWG. 8 TURNS,3MM DIA. CLOSE WOND, C 6 4.7 PF, AT LEAST 1 MTR. TELESCOPIC ANT.TO COMPLETE COLPITTS OCELIATOR.
can anyone please tell me what is the frequency in which the FM transmits for this circuit????
thanx in advance
WE CAN CONNECT 3.5 MM CONNECTOR AFTER PUTTING TWO1MEG RESISTORS INSTED OF MIKE & PLAY MUSIC FROM MOBILE.IT TRANSMITS VERY GOOD SOUNDS.
in the recevier which frequency we will tunnig
i want to know how i joint the P1,Q1,Q2. and what is the use of P1. i have made this circuit but its range is very poor. what can i do for this condition. please tell me.
sir i could not find the C6-3.3pf.which capacitor i can use at the place of C6.
can
hey, how to calculat frequancy of circuit. Please give me equation of calculation
A.M.MAHVY,MUMBAI plz can you help me to make this fm transmitter i from surat, gujarat. plz can you give me you e-mail add…… ?
HELLO FRIENDS,
I MAID THIS PROJECT SUCCESSFULLY. WITH PROPER FREQUENCY AND STRENGTH.IF YOU WANT HELP THEN CONTACT ME ON kpkpkalpesh@gmail.com or at 08866792042…… i will surly help you to bring out you from the problem