Good quality FM transmitter
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
http://www.kpsec.freeuk.com/symbol.htm
http://www.kpsec.freeuk.com/symbol.htm
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
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ajay_bhargav, pdi33 like this.
Tags Simples FM transmitterFM transmitter5V FM transmitter
Sun Nov 02 2008, 05:51 AM
another tested ok
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Part
Total Qty.
Description
Substitutions
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
Part
Total Qty.
Description
Substitutions
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........
AND how to set the TRIMMER plz........
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Fri Aug 07 2020, 08:01 AM
Tony Eldredge
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Thu Jun 11 2020, 06:27 AM
anudee
sir could please send the code for I2C and wifi interfacing with 8051
Tue May 19 2020, 10:29 PM
Does anyone have microcontroller programming software for STC15F104W (core 8051, 4 k, 128 byte, 6 I/O pin, UART ... DIL8), that works?
Sat May 02 2020, 07:38 PM
Tamu Gurung
Hi I am looking for a assembly language program for a digital decimal counter. Time counts max limit of 2 mins starting from 2.00 mins and ending at 0.00. time is to be displayed on 4 7-segment LED displays. Edsim51 simulator to be used. Thanks
Wed Mar 25 2020, 01:39 PM
Tajammul
Sir kindly send the code file i2c for 8051
Fri Mar 13 2020, 12:55 PM
ABEBE
how can get hadwere of this project
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Is it possible to send multiple messages using only 1 GSM module?
Sat Feb 01 2020, 10:12 AM
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Hello,
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