Hobby Electronics Basics

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12V DC to 220AC + calculations

Hi to all ! I need some help with calculation. I have 12 DC car battery and convertor for 220 AC with 150W output. Ques...
10 comments posted 20yrs
posted by iKolar26
10 comments posted 20yrs posted by iKolar26

Change from Battery to AC Power

Hi, I'm trying to setup my baby's rocker, which currently uses 4 "D" batteries. I'd like to have this work an AC power...
7 comments posted 20yrs
posted by joey.raheb
7 comments posted 20yrs posted by joey.raheb

copy a M27C4001 ?

Hi, What's the cheapest way for me to copy these ? Thanks
2 comments posted 20yrs
posted by dtushingham
2 comments posted 20yrs posted by dtushingham

How to copy/burn a 32 pin PLCC boot rom ?

Hi, I have a bootrom chip and I wish to make a copy. Can you guys point me in the right direction please ? The chip is...
2 comments posted 20yrs
posted by dtushingham
2 comments posted 20yrs posted by dtushingham

using SMDs

Hey all; I have something that I would like to mess around with, but the parts are SMDs. Does anyone have any tips for...
4 comments posted 20yrs
posted by toccata
4 comments posted 20yrs posted by toccata

Choosing voltage opamp

Hello, I'm looking to add the 2nd stage to photodiode transimpedance amplifier. All I want to achieve by 2nd stage is v...
28 comments posted 20yrs
posted by vmykhayl
28 comments posted 20yrs posted by vmykhayl

[newbie] leds and 7432

I need to link two green leds to one of the outputs of a 7432, but the output current is insufficient. What can I do? I...
2 comments posted 20yrs
posted by nospam
2 comments posted 20yrs posted by nospam

a simple question

can i use television in place of pc-monitor?
6 comments posted 20yrs
posted by chrajesh911
6 comments posted 20yrs posted by chrajesh911

Wire Gauge and Scooter Batteries

I have posted on this newsgroup in the past with regard to my scooter, which is used for all of my mobility outside of...
2 comments posted 20yrs
posted by mea305
2 comments posted 20yrs posted by mea305

Speaker Source Selection

Good Afternoon, I have what I believe not to be a unique situation. I have three amplifiers, and a set of speakers. I n...
2 comments posted 20yrs
posted by lochok
2 comments posted 20yrs posted by lochok

Intelligent wheelchair

Dear friends... This is Mahesh Kedari. I am struggelling to design and implement the Intelligent wheelchair for handica...
1 comments posted 20yrs
posted by maheshbest
1 comments posted 20yrs posted by maheshbest

seven segment display

Hello, I am attempting to find a (multiplexing)seven segment display driver capable of driving at least 5 7seg drivers....
4 comments posted 20yrs
posted by rsippken
4 comments posted 20yrs posted by rsippken

A little help here

Hey, I was wondering if it was possible to connect a phone to the computer to use as a microphone ? Ya know, a regular...
7 comments posted 20yrs
posted by dakweenofdasouth
7 comments posted 20yrs posted by dakweenofdasouth

Blinking led with a PIC

HI I am trying to make a led blink. I am using picbasic compiler. I get the program to work and the circuit to work, Bu...
5 comments posted 20yrs
posted by lerameur
5 comments posted 20yrs posted by lerameur