Discussion in "Electronics" started by    ۞ TPS ۞    Oct 9, 2007.
Tue Oct 09 2007, 01:08 AM
#1
HERE IS Good quality sensitive FM transmitter .i have tasted it it gives awesome result
Tue Oct 09 2007, 06:49 AM
#2
where it is
Tue Oct 09 2007, 11:14 AM
#3
i cant see either...
Tue Oct 09 2007, 12:50 PM
#4
oops here it is
 pdi33 like this.
Tags fm transmitter circuitminiature fm transmitter
Tue Oct 09 2007, 02:31 PM
#5
Hellow to every one yea i have also tested this transmitter this works good,but basic problem with this transmitter is the range and the sound quality which is not up to the mark if some body is really interested in making good FM transmitter go for 4 Watt FM transmitter. After making this transmitter u will feel like u have made something its like a small radio station with a huge range of 50 KM in open space

http://www.electronics-lab.com/projects/rf/001/index.html

 pdi33 like this.
Tue Oct 09 2007, 02:46 PM
#6
do u know source of silver coated wire (Gauge?0 also RFC1=RFC2=RFC3= VK200 RFC tsok
TR1 = TR2 = 2N2219 NPN
TR3 = 2N3553 NPN
Tue Oct 09 2007, 03:14 PM
#7
TR2 2N2222 or 2N2219 or BC337-25 NPN transistor
TR3 2N3553 or 2N3924 or BFS22A
No need of using silver coated wires our simple copper wires with the given diameter, can be used.
choke VK200 can be obtained from a Radio shop
or

http://www.rfparts.com/choke.html

if u do not get this component dont worry

RFC is a radio frequency choke it is a circuit element designed to present a high impedance to radio frequency energy while offering minimal resistance to direct current. RFCs are frequently used in series with power supply leads both to keep RF from coupling via undesired power supply paths and to prevent power supply components from paralleling undesired impedances across the RF circuit.
so if u want to avoid this in your circuit u can.
I hope it will be usefull.


[ Edited Tue Oct 09 2007, 05:35 PM ]
Tue Oct 09 2007, 03:20 PM
#8
ya somewhere i saw a site where they suggested to make VK200 RFC option
Tue Oct 09 2007, 03:30 PM
#9
but i dont think they would have given this explanation behind their suggestion :-)
Sun Dec 09 2007, 09:32 PM
#10
Hey guys, my name is Andy. I have tried to build that transmitter and I think I need a little help as it's my first project. The 9v battery at the top, I can't understand where the 2 wires should go ? Has anyone actually built one of these ? If so can you pleassseeee please e-mail any photo(s) to me at [email protected] I'd really really appreciate it thankyou !

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