Hobby Electronics Basics

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Audio amplifier

Hi , I am using an audio amplifier of transistor 2N3055 .It uses two transistors for one channel and 4 for two channel...
8 comments posted 20yrs
posted by sahilmaratha
8 comments posted 20yrs posted by sahilmaratha

Chime on an Explorer too low?s

This is that annoying chime that rings if you leave the keys in ignitionf .Its off my brothers vechile and he said it p...
0 comments posted 20yrs
posted by clannorm
0 comments posted 20yrs posted by clannorm

Connecting 200 LEDs to AC (120V)?

Hi All, I am planning to remove the light fixture from one of our rooms and put 200 LEDs instead. LEDs are going to be:...
51 comments posted 20yrs
posted by homi_us
51 comments posted 20yrs posted by homi_us

quick emitter follower question

Hi; I'm thinking about using a simple 1 transistor emitter follower in an audio design (the audio signal will pass thru...
24 comments posted 20yrs
posted by toccata
24 comments posted 20yrs posted by toccata

Help with AGC circuit

I'm designing an AGC circuit using Teledyne Cougar parts. The AGC amp is the AGC230, the detector is the DAC4101. I'm t...
1 comments posted 20yrs
posted by marketmark
1 comments posted 20yrs posted by marketmark

A few elementary questions

Hello everyone, I don't know if this is the best place to ask, but I just had a few questions about elementary wiring /...
13 comments posted 20yrs
posted by dartkick
13 comments posted 20yrs posted by dartkick

schematic vs breadboard

Hi everyone, I am trying to build a simple A/D convertor from a schematic on my breadboard. Now, I've built something,...
36 comments posted 20yrs
posted by elesser
36 comments posted 20yrs posted by elesser

Reuse notebook monitor with desktop

I have a notebook monitor (the rest of the notebook doesn't work) and would like to connect it to a regular desktop pc....
11 comments posted 20yrs
posted by feudalac
11 comments posted 20yrs posted by feudalac

Wanted: Capstone Project Suggestions

Hi, I'm taking a non-calculus based Electronics I course at a local community college using Malvino's text, _Electronic...
24 comments posted 20yrs
posted by fcache
24 comments posted 20yrs posted by fcache

Vehicle detector

Would a multi turn coil, a metre or two in diameter, buried beneath the surfce of a driveway, with the ends of the coil...
10 comments posted 20yrs
posted by dewhurst
10 comments posted 20yrs posted by dewhurst

Interfacing A Pressure Sensor

Hi, I have a pressure sensor (http://www.farnell.com/datasheets/8717.pdf - page 4) which uses positive and negative pin...
9 comments posted 20yrs
posted by mqiqcqhqaqeqlqhqiqmqsq
9 comments posted 20yrs posted by mqiqcqhqaqeqlqhqiqmqsq

Digital to multiple analog conversion

How would one go about taking say 8 or more digital 'on/off' signals from a microcontroller, and producing 8 steady ana...
7 comments posted 20yrs
posted by onlinefuel
7 comments posted 20yrs posted by onlinefuel

fusing - Tripping factor

I understand how to get the fusing factor, but so what? what does it realy tell me, and what happens if I get it wrong?...
1 comments posted 20yrs
posted by strange.electric
1 comments posted 20yrs posted by strange.electric

Amplitude-Modulation Synthesis

Hi: I know of many types of synthesis for music. I am curious about two types -- FM and AM. Does FM synthesis have any...
6 comments posted 20yrs
posted by glucegen1
6 comments posted 20yrs posted by glucegen1

Receiving Pulse-Code Modulation on AM radio?

Hi: Hypothetical situation: a PCM audio signal [24-bit and monoaural] is transmitted through an analog 150 Khz AM carri...
7 comments posted 20yrs
posted by glucegen1
7 comments posted 20yrs posted by glucegen1