Hobby Electronics Basics

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troubleshooting refrgerator

Hello, I live in Latin America and am having a problem with refrigeration in my house that I think must be related to t...
3 comments posted 22yrs
posted by roadrunnerhonduras
3 comments posted 22yrs posted by roadrunnerhonduras

GFCI

Our house is 7 years old and there's a GFCI outlet (always on) installed in our garage. I wanted to tap into the GFCI o...
3 comments posted 22yrs
posted by jsnjmc5
3 comments posted 22yrs posted by jsnjmc5

zener trouble

We're a couple of students doing an electronics project. We are to construct a battery indicator circuit. We had a fini...
23 comments posted 22yrs
posted by egd.bydalen
23 comments posted 22yrs posted by egd.bydalen

Alternative A/C adapter for HP Photosmart camera

I recently purchased an HP Photosmart 435 digital camera. I'm looking for an A/C adapter that is less expensive than th...
8 comments posted 22yrs
posted by dht+usenet
8 comments posted 22yrs posted by dht+usenet

Switching inductive loads

Greetings fellow Earthlings, I know pretty much how to design circuits for zero crossover switching controllers for pur...
1 comments posted 22yrs
posted by RazroRog
1 comments posted 22yrs posted by RazroRog

What's a Joule?

I am teaching myself from Thomas L. Floyd's "Principles of Electric Circuits". So far (chapter 4) it seems that he has...
11 comments posted 22yrs
posted by thesagerat
11 comments posted 22yrs posted by thesagerat

Placing objects on top of a microwave oven

Hi, I have a question about microwave ovens which probably sounds a bit silly, but here goes... Prior to purchasing a s...
8 comments posted 22yrs
posted by master_ed
8 comments posted 22yrs posted by master_ed

Cost of electricity for light dimmer

I have an ordinary room lamp. In the mains lead of the lamp there is a dimmer device. It is continuously variable from...
43 comments posted 22yrs
posted by zarbol
43 comments posted 22yrs posted by zarbol

Question on Logic Gates

Hi, I would like to ask if anyone know a circuit or an IC that has the following characteristic. single input -- single...
6 comments posted 22yrs
posted by vsebay
6 comments posted 22yrs posted by vsebay

Microprocessor question

I have a question that I hope someone on here can answer, or give me an insight: 1. Is there any way to do a quick chec...
21 comments posted 22yrs
posted by gary_s
21 comments posted 22yrs posted by gary_s

bus hold driver

Hello, I'm very new to the concept of bus hold. My question: If I want to have a logic low on one of the bus lines, doe...
0 comments posted 22yrs
posted by shalls9999
0 comments posted 22yrs posted by shalls9999

Ethernet and Power Cables

I was told that it is not a good idea to run a power (120 AC) cable together with an Ethernet cable because the AC cabl...
15 comments posted 22yrs
posted by nospam
15 comments posted 22yrs posted by nospam