Discussion in "Electronics" started by    ۞ TPS ۞    Oct 9, 2007.
Mon Dec 10 2007, 04:20 AM
#11
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
Sun Jan 06 2008, 01:30 PM
#12
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
#13
Another simplest transmitter
 ajay_bhargavpdi33 like this.
Tags Simples FM transmitterFM transmitter5V FM transmitter
Thu Jan 17 2008, 06:39 AM
#14
this one is awesome.. you are great TPS
Thu Jan 17 2008, 08:42 AM
#15
Thanks Ajay :blush
Tue Apr 08 2008, 06:26 AM
#16
ANOTHER TASTED OK FM TRANSMITTER WITH PCB

Tue Apr 08 2008, 08:21 AM
#17
host your picture on imageshack.us
they are much better..
Wed Apr 09 2008, 05:39 PM
#18
IS there is any problem in viewing pictures
Sun Nov 02 2008, 05:51 AM
#19
another tested ok

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
#20
CAN SOMEONE tell me how to MAKE RFC VK200 in home
AND how to set the TRIMMER plz........

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Sun Oct 13 2019, 02:02 AM
Aline Hutchinson
Hey there,
ExperimenterUK
Sat Oct 12 2019, 10:23 PM
Log in.. then post your code in the 8051 forum
Sat Oct 12 2019, 10:18 AM
Bhadra Sajikumar
i am doing a countdown timer with 8051 for my project, unfortunately our professor had to take a leave of absence before he could teach us most of it.. can someone explain the .asm code of it for me?
Mon Sep 23 2019, 07:37 AM
Nathaniel
I am doing a project for my schools wireless security system with cameras,sensors and spot lights using 8051 micro controller, could you help me out with the design and its source code.
Wed Sep 18 2019, 08:48 PM
Caryn Kover
Thank you for your time,
ExperimenterUK
Mon Aug 05 2019, 07:09 PM
@Ismail ..post in forum, give details
Mon Aug 05 2019, 04:33 PM
Ismail balghmi
Hello. Please I won't download
ExperimenterUK
Wed Jul 24 2019, 12:47 AM
@BUSTER123 Please post in the forum
Tue Jul 23 2019, 06:13 PM
BUSTER123
hello! newbie here. i am kind of a guy who hates using ready - made existing libraries, so this helped a lot as i was trying to control and write to a character lcd display. however, i can't figure out how to set the cursor position. for example, i want to set it to the 5th column in the first row, so position 5. so according to the table, i am sending 10000101 on the 8 data lines of the lcd (register select pulled low). the cursor does not move there however. and i cant move the cursor left or right too. is it something wrong that i am doing? thank you.
ExperimenterUK
Thu Jul 11 2019, 07:55 PM
@ramos https://www.theengineeringprojects.com/2017/09/l298-motor-driver-library-proteus.html

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Sun Oct 20 2019, 03:02 PM
sir, when i on display ,sometime 3rd display is no...
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Sun Oct 20 2019, 02:53 PM
sir, when i on display ,sometime 3rd display is no...
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Sun Oct 20 2019, 12:21 AM
Your code seems okay on my simulationTry my code o...
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Your code seems okay on my simulationTry my code o...
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please find video attachment. 3rd & 4th displa...
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sir, 3rd and 4th dot matrix display flickering, ...
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Fri Oct 18 2019, 09:18 PM
Hopefully you understand some of the program.Which...
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Posted By ExperimenterUK
Thu Oct 17 2019, 08:35 PM
Do you understand how this code works?If so, addin...