Hobby Electronics Basics

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How does an RMS detector work?

I'm currently delving into audio stuff. I was wondering how exactly does an RMS detector work. I can picture how a peak...
16 comments posted 19yrs
posted by mr.whatever
16 comments posted 19yrs posted by mr.whatever

disk of induction type over current relay

hello, why the rotating alluminium disk of induction type over current relay's surface is rough or dotted? and why its s...
0 comments posted 19yrs
posted by hitesh.30878
0 comments posted 19yrs posted by hitesh.30878

Transformerless high voltage from 120VAC

I need to build a compact transformerless high voltage supply that will run off of 120VAC mains and produce at least 20...
4 comments posted 19yrs
posted by kilovoltamps277
4 comments posted 19yrs posted by kilovoltamps277

step up converter

Hello, I am building a step converter, the circuit works and is based on the following web site: http://services.eng.ut...
8 comments posted 19yrs
posted by lerameur
8 comments posted 19yrs posted by lerameur

amplifying signal from crank position sensor

My 1989 Jeep Cherokee started having an intermittent problem where it dies sometimes when I'm driving and is getting ha...
21 comments posted 19yrs
posted by kellrobinson
21 comments posted 19yrs posted by kellrobinson

testing zener diodes in circuit

I have a circuit that I built years ago. Rather than just replacing a bunch of zener diodes, is there a way to test the...
4 comments posted 19yrs
posted by techman41973
4 comments posted 19yrs posted by techman41973

Car and Deep Cycle Battery FAQ

The Car and Deep Cycle Battery FAQ Web pages have been moved. They are located at http://www.batteryfaq.org/. The lates...
0 comments posted 19yrs
posted by info
0 comments posted 19yrs posted by info

monitor pinout

I was wondering if anyone knows the pinout for the standard 15 pin PC monitor connection. I found talk of it from sketc...
1 comments posted 19yrs
posted by bob
1 comments posted 19yrs posted by bob

DC Motors

Does anyone know what kinda motors that most drills use? I was thinking it was a torque motor but not sure. Also, for D...
20 comments posted 19yrs
posted by Jon_Slaughter
20 comments posted 19yrs posted by Jon_Slaughter

Build USB Long Cable

if I build by my self a USB cable by 4 seperate coaxial cable together , it's can work over 5 meter?
13 comments posted 19yrs
posted by mtczx232
13 comments posted 19yrs posted by mtczx232

Help enclosure for speaker + batteries

Hello all We are looking for an off the shelf enclosure which will hold a speaker and have an opening for batteries(bat...
4 comments posted 19yrs
posted by Dgleeson
4 comments posted 19yrs posted by Dgleeson

welcome

How are you?
0 comments posted 19yrs
posted by t2000ta
0 comments posted 19yrs posted by t2000ta

remove controled devices

I'll be needed to create a simple remote control system soon and I'm curious as to my options(and I have no experience...
5 comments posted 19yrs
posted by Jon_Slaughter
5 comments posted 19yrs posted by Jon_Slaughter

433MHz remote powerplug - Copy the remote

Hi, Ok, topic may seem like I want to copy someones design, that is not the case. I want to trigger the radio controlle...
0 comments posted 19yrs
posted by nospam
0 comments posted 19yrs posted by nospam