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| Title | Author | Views/Replies | Posted at |
 How to measure Terrestrial TV signals level ?Good evening, I'd like to design a circuit to measure the terrestrial TV signal level (measured in db礦) on a display. As you well know, this is a function available on a TV Field Strength Meter. ... |
ybyygu | 2/4 | 2008/8/29 20:06 |
| helppp Hello guys, Plz tell me that I want to count lumps of CLOTH on the moving belt ..How i can i do---I think this is possible by means of infrared ....but how...plz plz do reply Secondly tell me tha... |
addxjyx | 4/1 | 2008/8/29 20:09 |
| Need help regarindg design of triggring circuit for thyristo hi i am working on induction generator in that i cold not design triggering circuit of full controlled thyristor bridge rectifire...thyristor rating is high order of 40A i tryed with UJT triggering ci... |
chdd | 3/1 | 2008/8/29 20:04 |
| TV Antenna HF-VHF-UHF Booster Hi, Here it's Bye |
hualeyan | 4/1 | 2008/8/29 20:31 |
| digital calender help hey can any body help me in 8051 based digital calender??? |
yvling | 3/1 | 2008/8/29 20:02 |
| PIC based power meter What you think about attached wattmeter design? |
z315 | 6/2 | 2008/8/29 20:34 |
| Offset i have a circuit with supply voltage of 10v, and i need to make an offset of about 20v to change the output voltage of the ac signal , is there anyway to do so. regards |
ybyygu | 2/2 | 2008/8/29 20:22 |
| I need help for basic IO controls I need some suggestions on the issue of the asynchronous serial data transferring circuits. A simple, maybe, circuit with low power to detect asynchronous serial data input is needed in a low power co... |
fusarium | 5/1 | 2008/8/29 20:32 |
| Help A/D PIC16F877 how I must use converter A/D with 8bits? |
stgod | 7/8 | 2008/8/29 20:24 |
| Which ROM IC to use for interfacing with AT89S52? Hi, I have never used an AT89S52 with external 64K code memory. Can you please suggest which IC would be the best one? I only need external code memory as the internal RAM would be sufficient for ... |
z315 | 3/3 | 2008/8/29 19:59 |
| Astable Multivibrator How to make this circuit running 24V 3W Bulb? |
mxg330 | 3/5 | 2008/8/29 20:11 |
| Help plz for car MP3 hi, i have purchased a car mp3 player with fm transmitter (china made). it works fine for some days. but now not working, neithor with PC (to add more songs) nor playing songs. only lcd back light is... |
addxjyx | 4/4 | 2008/8/29 19:57 |
| Want any electronics products opportunities! Dear Lady/Gentleman, We're a Electronic devices producer from East China. We focus on customized electronic products making. If you have any interests in outsourcing your works to us. Please le... |
booksir | 3/2 | 2008/8/29 20:02 |
| 27MHz Radio Control System, my very first one... Hi RC electronic buddies, This is the very first one i made from PW 1979 issue. Feel free to ask any thing about it and I will be glad to help. Regards |
netlgc | 3/19 | 2008/8/29 20:03 |
| magstripe card reader/writer hello, im trying to do this project and i was wondering if any of u knew of a good manual on how to build a magstripe card reader/writer. i'd appreciate if anyone can point me in the right direction,... |
wyslnhhh56 | 3/8 | 2008/8/29 20:01 |
| Variable speed trigger converted to variable speed knob I have what should hopefully be a simple question. Please forgive my ignorance, my knowledge in this arena is limited. I have a trigger from a variable speed powered screw driver that I want to re... |
z4120356 | 3/2 | 2008/8/29 20:09 |
| datasheet of LA4301 hello, anybody got an idea on how to get the datasheet for LA4301? I am not sure about the manufacturer, most probably it's made by Sanyo. I've search through the net, but seems like only Sanyo's LA4... |
ai8957382 | 3/2 | 2008/8/29 20:19 |
| Ambilight idea The idea is to use the cvbs-out from the scart connector, convert to RGB - sample the signals - process with alogrithm - output into LED's RGB and white Any idea on chips to decode the cvbs into r... |
nnxd | 4/2 | 2008/8/29 20:16 |
| IR repeater Dear guys, I am doing IR repeater for my own hobby. Receiving module is from Vishay TSOP7xxx that could detect well beams out from remote control. I am using 555 IC to regenerate 40KHz exactl... |
spacebac | 5/2 | 2008/8/29 20:31 |
| CGA signals to Webcam Video format Hello, I have a project where I am trying to convert CGA video signal (RGB and composite video) to a format that it can be plugged into a standard video card. E.G. If I could get it to the video fo... |
ai8957382 | 4/1 | 2008/8/29 20:31 |
| question about ir module and phototrasistor !! hi everyone , can i use an ir module (the one with 3 pins) instead of a phototransistor ,if yes, how can i do that , i mean what should i change ? whats the main diffrence between the 2 solution ? |
zunwang | 8/6 | 2008/8/29 20:15 |
| Need help with Telemetry/ Data transmission thru ASK or FSK I'm constructing a telemetry ckt that relays temperature data wirelessly thru' RF. I'm trying to use a IC like DS1621 from Maxim or Analog Devices' AD7818 for temperature sensing, coz it has integrate... |
yutcxa | 4/14 | 2008/8/29 20:12 |
| help needed identifying component hi, this is my first post, so sorry if it's in the wrong section! i have a "mame" arcade machine, which is basically just a modified pc board. yesterday, some component came off it, andf now the so... |
gao51755775 | 3/2 | 2008/8/29 20:10 |
| Using a 74C922 to decode a 3x4 Keypad Hey guys, I'm kinda stuck on this one. I'm trying to use a 3x4 keypad, which goes to a 74C922 IC. From the 74C922, I'm putting the data out to my PPI and the data available pin to my PIC. I can han... |
pdang | 4/2 | 2008/8/29 20:02 |
| crosstalk looking for info about "crosstalk" |
stgod | 7/3 | 2008/8/29 20:34 |
| interface ttl and cmos logic? Hi What is the notes on interfacing cmos to ttl and ttl to cmos logic? can we connect 74HCT devices to cmos 40xx devices? please explain it. |
fujun2013 | 5/6 | 2008/8/29 20:31 |
| Need Help - RF1K49157 MOSFET Hello All, I'm designing my final year project using the above MOSFET. I could'nt find the item here in Malaysia. Any one can direct me to the suppliers in small quantity (10 units) or help me get... |
naoge | 15/3 | 2008/8/29 20:18 |
| Thermistors I have checked everywhere and can't find a thermistor. RadioShack doesn't stock them anymore, apparently, and I can't find one anywhere. I am making a temperature sensor and the thermistor needs to be... |
ai8957382 | 9/10 | 2008/8/29 20:07 |
| synchronous clocks i want to make a set of beacons for a robot to navigate from. using the same principle of sonar of dividing the distance by the amount of time, the beacons send an ultrasonic pule every few seconds o... |
btcdtc | 12/4 | 2008/8/29 20:27 |
| 12v down to 5v New to this so can anyone tell me in very simple and plain terms how to drop 12v down to 5v so i can run a rc servo off a car battery. does anyone have a picture of a circuit already done so i can see... |
stgod | 4/28 | 2008/8/29 20:03 |
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