Hobby Electronics Basics

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Career Advice

Hi I need a bit of advice on what career path I should follow. I have recently finished universtiy and am quite good a...
3 comments posted 21yrs
posted by tuurbo46
3 comments posted 21yrs posted by tuurbo46

Measuring "capacitor drift"?

--Have recently learned of this phenom. Can someone describe a method one relatively unversed in electronics might use...
3 comments posted 21yrs
posted by steamer
3 comments posted 21yrs posted by steamer

those can type caps

Hey all; You know those multi cap can style caps (in an aluminum or cardboard can)? They usually have 2 or more tabs on...
6 comments posted 21yrs
posted by toccata
6 comments posted 21yrs posted by toccata

Max volume for condensor mic

I have a condensor mic element bought at Radio Shack part #270-090. How loud can I go before damaging it? Would I be abl...
2 comments posted 21yrs
posted by ngdbud
2 comments posted 21yrs posted by ngdbud

LCD Module Connector?

I have an LCD module (Optrex DMC16204N-LR-B) with 15 pins of 2mm pitch, and I have to connect it to a 0.1" pitch solder...
5 comments posted 21yrs
posted by redbrickhat
5 comments posted 21yrs posted by redbrickhat

capacitor for 12V DC gear motor

I have a 12V DC gear motor that runs at .2-1.2 amps I do not want the motor to run if it has a supply of less than 10V...
2 comments posted 21yrs
posted by drjefflewis
2 comments posted 21yrs posted by drjefflewis

Detecting minor voltage drops on a 50V source

I'm trying to find a schematic of an external device (maybe a comparator ?) that may detect a minor drop from a 50V sou...
10 comments posted 21yrs
posted by nina.p20
10 comments posted 21yrs posted by nina.p20

Astable Multivibrator Generates Sub-Ground Voltages

Hello, I've been simulating a circuit of the 'classic' astable multivibrator and analysing the results. This is the old...
15 comments posted 21yrs
posted by jeff.clarke
15 comments posted 21yrs posted by jeff.clarke

Additive & Multiplicative Noise

What is meant by additive & multiplicative noise in electronic amplifier circuits?
1 comments posted 21yrs
posted by e4opening
1 comments posted 21yrs posted by e4opening

Why is RF circuit shielded

Hi all, Why is RF circuit shielded inside a metal case...like a cell phone, where whole of the pcb and its components ar...
11 comments posted 21yrs
posted by nospam4u_jack
11 comments posted 21yrs posted by nospam4u_jack

EPROM Programmer

I recently acquired an EPROM programmer that plugs into my printer port on my PC. The software allows me to take all th...
6 comments posted 21yrs
posted by consultec
6 comments posted 21yrs posted by consultec

square to sine

Hi all, I want to know how to convert a 1KHZ square wave into a stable sine wave .Please can anybody help me out Many Th...
22 comments posted 21yrs
posted by sandeep_sudheer
22 comments posted 21yrs posted by sandeep_sudheer

Capturing EM interference with a microphone

Hi, I was hoping somebody here might be able to help me with a question. First, some background. A couple of months ago...
20 comments posted 21yrs
posted by no
20 comments posted 21yrs posted by no

Building a pool lap timer

Hey I wanna challenge myself and make something that allows be to monitor my laps in the pool via a computer. I was thi...
7 comments posted 21yrs
posted by adrianscerri
7 comments posted 21yrs posted by adrianscerri