Hobby Electronics Basics

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EEPROM as logic?

Hiya folks. I've come up with a few designs for modifying various devices on different occasions, but in almost every c...
16 comments posted 18yrs
posted by fyberoptic
16 comments posted 18yrs posted by fyberoptic

LCD monitor water damage

X-No-Archive: Yes I have a 24" LCD, Dell UltraSharp 2408WFP. I have a child in the family that got mad and poured about...
2 comments posted 18yrs
posted by onestatusquo
2 comments posted 18yrs posted by onestatusquo

Resonant RLC Conundrum

I recently purchased a variable-voltage, variable-frequency power supply (which was designed for driving capacitive loa...
11 comments posted 18yrs
posted by jackpanella
11 comments posted 18yrs posted by jackpanella

help me about 555

hi I have a project that is connected with the famous 555 timer I want ask you if you know a newwer chip with the better...
11 comments posted 18yrs
posted by erfan.talebzadeh
11 comments posted 18yrs posted by erfan.talebzadeh

PC Audio Generator

Building a AM/FM Radio kit and you test each section after construction, so far I have not screwed up, now I am at the...
1 comments posted 18yrs
posted by pinkFloyd43
1 comments posted 18yrs posted by pinkFloyd43

Help repairing a board with SN74LS123N

Hi people, OK, out of my depth here so be gentle. I have a 6" x 4" PCB with a display and other stuff on it and it is s...
4 comments posted 18yrs
posted by davenpete
4 comments posted 18yrs posted by davenpete

buck boost

http://en.wikipedia.org/wiki/Buck-boost_converter Is there a reason why the switch is between the voltage source and th...
6 comments posted 18yrs
posted by mrdarrett
6 comments posted 18yrs posted by mrdarrett

output resistance of ota

What is the large signal output resistance of this circuit? http://users.ece.gatech.edu/phasler/Courses/ECE4430/project...
4 comments posted 18yrs
posted by lionelgreenstreet
4 comments posted 18yrs posted by lionelgreenstreet

Measure opamp output Z

For anyone who's read my previous post you know that I'm using an MCP600x for an EA in an LDO. I first tried to do it i...
2 comments posted 18yrs
posted by spamme
2 comments posted 18yrs posted by spamme

telephone circuit

Hello, I am using a pic controller for a dialer project. My goal is to dial a number, when the receiving end picks up,...
17 comments posted 18yrs
posted by lerameur
17 comments posted 18yrs posted by lerameur

hello every one

I'm new here I hope I will take good time with everyone Who can tell me what can I do If I become to be a hacker?
6 comments posted 18yrs
posted by robinshion
6 comments posted 18yrs posted by robinshion

Really old homebrew power supply

I have a power supply that I built as one of my first projects when I was in high school, in the mid 1960s, and it has...
5 comments posted 18yrs
posted by pstech
5 comments posted 18yrs posted by pstech

Phone problems after thunderstorm

I am trying to help my grandmother with a phone problem. I'm not entirely sure what's going on (she's very confusing) b...
11 comments posted 18yrs
posted by littleboyblu87
11 comments posted 18yrs posted by littleboyblu87

lightning timer

In our house we do have lightning that stops working after a 30 seconds or 1 minute. But for now the timer doesn't work...
3 comments posted 18yrs
posted by no
3 comments posted 18yrs posted by no

Battery charging software

BattChgPro Ver 1.5 Battery charging software Nine types of battery chemistry (Secondary) Lithium, NiCad, NIMH, Lead Aci...
0 comments posted 18yrs
posted by eb3354
0 comments posted 18yrs posted by eb3354