Discussion in "Electronics" started by    ۞ TPS ۞    Oct 9, 2007.
Mon Dec 10 2007, 04:20 AM
hi Andy I think you do not understand where to connect + and - of 9 v battery as you can see +ve terminal of 9v battery to be connected on top red point as mentioned +9v and -ve terminal to be connected to ground of circuit ie below R5 (100 ohms) i also suggest you to please gain some knowledge about circuit symbols you can visit following site
Sun Jan 06 2008, 01:30 PM
hey guys, if anyone is willing to help me further with building fm transmitters I'd really appreciate your help. If you can e-mail me at [email protected] I'd really appreciate it. If you have built them already that would be a great help...I might even pay you for building and sending me one with the plans !
Thu Jan 17 2008, 03:53 AM
Another simplest transmitter
 ajay_bhargavpdi33 like this.
Tags Simples FM transmitterFM transmitter5V FM transmitter
Thu Jan 17 2008, 06:39 AM
this one is awesome.. you are great TPS
Thu Jan 17 2008, 08:42 AM
Thanks Ajay :blush
Tue Apr 08 2008, 06:26 AM

Tue Apr 08 2008, 08:21 AM
host your picture on imageshack.us
they are much better..
Wed Apr 09 2008, 05:39 PM
IS there is any problem in viewing pictures
Sun Nov 02 2008, 05:51 AM
another tested ok


Total Qty.


C1 - 0.001uf Disc Capacitor
C2 - 5.6pf Disc Capacitor
C3,C4 - 10uf Electrolytic Capacitor
C5 - 3-18pf Adjustable Cap
R1 - 270 Ohm 1/8W Resistor 270 Ohm 1/4W Resistor
R2,R5,R6 - 4.7k 1/8W Resistor 4.7K 1/4W Resistor
R3 - 10k 1/8W Resistor 10K 1/4W Resistor
R4 - 100k 1/8W Resistor 100K 1/4W Resistor
Q1, Q2 - 2N2222A NPN Transistor 2N3904, NTE123A
L1, L2 - 5 Turn Air Core Coil
MIC - Electret Microphone
MISC - 9V Battery Snap, PC Board, Wire For Antenna

[ Edited Sun Nov 02 2008, 05:57 AM ]
Thu Jan 22 2009, 07:15 PM
CAN SOMEONE tell me how to MAKE RFC VK200 in home
AND how to set the TRIMMER plz........

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