Hobby Electronics Basics

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LM358 not for audio

** The LM358 is a poor choice for most audio circuits - particularly if you want low distortion. Why? The LM358 and its...
4 comments posted 14yrs
posted by phil_a
4 comments posted 14yrs posted by phil_a

Audio Amp Crossover Distortion?

I see excessive crossover distortion with this audio amp not shown with LTspice. It simulates ok, but the wired circuit...
72 comments posted 14yrs
posted by bperryb
72 comments posted 14yrs posted by bperryb

Huh? Since When--?

I use the Exar XR2206 function generator in a lot of my projects but now I see-- at least according to Mouser-- that th...
47 comments posted 14yrs
posted by orion
47 comments posted 14yrs posted by orion

Some good basic books on motors

Electric Motors by Jim Cox. Electric Motors in the Home Workshop by Jim Cox Electric Motors and Control Techniques by I...
0 comments posted 14yrs
posted by etpm
0 comments posted 14yrs posted by etpm

off-label use of adjustable shunt regulator

I was going to use a TL431-type regulator like this (view in Courier or fixed font) 7 volts | ,----+---------, | | pnpx...
2 comments posted 14yrs
posted by kellrobinson
2 comments posted 14yrs posted by kellrobinson

Tide table audiograph

I was looking at a tide table to find minus tides during the daytime to go poke at creatures and I thought that the fai...
14 comments posted 14yrs
posted by perilmung
14 comments posted 14yrs posted by perilmung

Very very elementary electronics questions

Hello,=20 As the group name contains the word "basic" in it, there must be a level be= low basic which I am at, since m...
20 comments posted 14yrs
posted by asaf.peled
20 comments posted 14yrs posted by asaf.peled

How it works ?

A credit card size of '' Eco harmonics electricity saver card '' when place on the incoming power supply box will save...
18 comments posted 14yrs
posted by mowhoong
18 comments posted 14yrs posted by mowhoong

AC mains to scope input

** After just a little research - it is not hard to see why connecting a scope directly to the AC mains is such a bad i...
27 comments posted 14yrs
posted by phil_a
27 comments posted 14yrs posted by phil_a

NXP I2C registration

Hi, does anyone know whether it is still required to register with NXP to use I2C interface? Have not been able to locat...
12 comments posted 14yrs
posted by matthewlingch
12 comments posted 14yrs posted by matthewlingch

AC current relay

I want to switch on some receptacles when another one is drawing current. I want my remote controlled TV to turn on the...
15 comments posted 14yrs
posted by default
15 comments posted 14yrs posted by default

measure AC mains with oscilloscope

I've heard 'no never do that' and 'it'l blow your fuse / you will die' etc... just trying to understand. As long as you...
19 comments posted 14yrs
posted by com
19 comments posted 14yrs posted by com