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| Title | Author | Views/Replies | Posted at |
 On help with diodeHi everyone I have got all my components for my project bar the mv2109 varactor diode. Does anyone know where could I possibly get it. Thanks |
lassa | 1/4 | 2008/9/3 20:59 |
| Contactless access card Hello everyone! After registering a few days ago I decided to make my first post (the first of many ). Here is some information of what I'm trying to do:I want to make an access control system, so... |
htc2498 | 4/11 | 2008/9/3 21:33 |
| anybody from New Zealand? I'm thinking getting a job there. Just want to know if its a good county to settle in? Info please. Thanks. |
hualeyan | 2/4 | 2008/9/3 20:46 |
| Help with school circuit My son built a circuit at school which is meant to be an automatic night light with 3 leds providing the light from a 9v battery. Its a voltage divider (?) using an LDR in the lower half. The voltage... |
yvling | 3/15 | 2008/9/3 22:08 |
| High Voltage Probe I have a Fluke 80K-6 High Voltage Probe but I don't know how to use it. Do I just hook it up to my DMM and set my meter to AC to measure voltage? I just want to make sure since I've never used one b... |
fusarium | 3/1 | 2008/9/3 20:48 |
| Ceramic Lightbulb Recepticle Anyone know where I can get those ceramic unswitched lightbulb recepticles? In bulk - mega cheap.My wife collects lightbulbs - and I might have made her passion worse by pointing out they will be lik... |
anuo2008 | 3/20 | 2008/9/3 22:33 |
| ADC I am tring to build a Analogue to digital converter on breadboard. I remember doing it years ago but i cant remember which sort of ADC i used, Does anybody no were i can get a cicuit diagram for a AD... |
pdang | 3/2 | 2008/9/3 21:00 |
| Problem With Alarm Clock I'm having a problem with my alarm clock - it's a ClearSounds WS1. The clock has started to pick up a radio station - and it's not a clock radio. It only picks up one radio station (1200AM, which is... |
mxg330 | 1/11 | 2008/9/3 22:46 |
| Free Pascal Compiler For 8051 For those who like programming in pascal here is Turbo51 - a free pascal compiler for the 8051 family of microcontrollers:Turbo51 Be aware this is NOT a Borland product, and is in fact developed by th... |
spacebac | 4/5 | 2008/9/3 22:50 |
| Video H-Sync. signal Dear all,I have monitor which work with TTL input.I want to plug it into an old plastic molding machine.The problem is with the H-sync. signal, which is negative instead of positive (I have a jpg file... |
mxg330 | 4/2 | 2008/9/3 22:07 |
| Refund On Your Diamonds I know a lot of us here got married, perhaps in the last 12 years or so. Well, in case anyone didn't know, DeBeers is paying $300 million for an antitrust settlement and ~half of that is earmarke... |
btcdtc | 2/16 | 2008/9/3 22:31 |
| Geeks I'm a geek, anyone else here a geek? |
fujun2013 | 3/15 | 2008/9/3 20:21 |
| computer oscilloscope Does anybody know about some pc program, that would work as a oscilloscope and that would use a microphone input of sound card?Thanks a lot |
netlgc | 2/4 | 2008/9/3 20:50 |
| Dead Band HiI have a sinusoidal input that ranges from -0.5 V t0 0.5 V going into a 741 op amp set up as a comparator which saturates at /- 10 V. My problem is that i need a dead band of /- 60 mV about the 0... |
398338 | 3/5 | 2008/9/3 21:07 |
| Hard disk motor connection I have disassembled some old hard disks and would like to know, how to supply the motors. There are 4 pins on the motor and I can see 4 small cables leading to the pins. One cable is much more thick t... |
hgping | 3/5 | 2008/9/3 20:36 |
| Microphone trouble Ok, so I have this little electret microphone, but when I have it hooked up to a 9-volt and a small speaker, the resistance changes aren't enough to operate the speaker. Besides amplification with ano... |
htc2498 | 3/2 | 2008/9/3 22:18 |
| remote mobile switch How does a mobile phone make different frequeny sounds. Does it depend on the current?If so, could you replace the speaker with a current activated switch so when you phone it and press a button dipen... |
ken7976 | 3/6 | 2008/9/3 21:02 |
| Free software Hey, I was thinking we could all list our favorite free software, maybe even make it a sticky?Here are mine...http://www.openoffice.org Good alternative to Officehttp://www.winamp.com Nice music playe... |
hgping | 4/7 | 2008/9/3 21:18 |
| BD-697 datasheet and how to bias? Hi guys,Anyone care to help me out on this one? Ive got a lot of Audiotransistors, and Ive figured out that I need some more "power" on myFM radio experiment found in http://www.dutchforce.com/~eforum... |
htc2498 | 4/4 | 2008/9/3 20:58 |
| Record IR remote control for playback? I was thinking of a project I wanted to start using IR remote controls.It seems easy so I know it can't be I want to record for the lack of a better term the output of a Tv remote, then be able to pla... |
ct731 | 2/9 | 2008/9/3 21:58 |
| hmmm This forum rocks after 2 or 3 glasses of red wine and a couple of scotches! Might hit that gardening forum im a member off and hit on some old biddies.Whats everyone else doing on their friday night? ... |
htc2498 | 3/6 | 2008/9/3 21:25 |
| PS caps How do you determine what size and rating capacitor to use when smoothing out the output of a transformer (after rectified of course)?For example, If I had a 12V 1A 60Hz output on a transformer, and i... |
edu | 4/2 | 2008/9/3 21:03 |
| TV Power Button Hi GuysMight be a tad off tangient, but hopefully someone might be enable to answer the question.I have been having a debate lately with one of my roommates who ademently believes that by turning off ... |
saigu | 3/8 | 2008/9/3 20:55 |
| Polish digital clock Check this out:http://www.yugop.com/ver3/stuff/03/fla.htmlNever needs setting, always correct. Nothing to build. |
naoge | 3/9 | 2008/9/3 21:50 |
| Skill saw on aluminum? Have a piece of 4" angle aluminum 5052 T6 extruded, 1/4" thick.I need to cut one of the "legs" down to 2-1/4" - meaning a 62 inch "rip" along the entire length with some precision. Hopefully a nice cu... |
pdang | 3/14 | 2008/9/3 21:52 |
| RF amplification from single supply Hi, first timer on this board - hope you can help 8->I am trying to amplify an RF signal using a single supply line (9V) FET - the input signal is of the order of 10mV and I need a gain of around 100 ... |
mxg330 | 2/4 | 2008/9/3 21:21 |
| hot cathode fluorescent lights I got these lights at a local surplus electronics store. The staff could tell me nothing about them. Does anyone recognize them?I'd like to know how to wire them up.I found a website that shows what m... |
bubulu | 5/10 | 2008/9/3 21:22 |
| Flux types I had only ever become aware of flux paste since joining this forum. No Radioshack I have ever been to even sells flux. Awhile back, I bought a butane torch, and it came with some lead-free solder and... |
yutcxa | 4/8 | 2008/9/3 21:31 |
| Hiya folx Long time no see.. Well I was bussy with all kind of stuff I wouldn't bore you with.. My TV died on me so I'll have look if I can fix it.. So you see? electronics just won't let you go.. And I wa... |
hgping | 4/11 | 2008/9/3 20:45 |
| Battery chargers. Are they worth it? Do they work? What are your views on rechargeable batteries that pertain to portable electronics?What rechargeable battery types do you have faith in more than others?Do some keep a charger longer than other?What i... |
zunwang | 4/15 | 2008/9/3 20:56 |
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