Hobby Electronics Basics

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10-inch-diameter speakers

I've always wanted some 10-inch (or 12-inch ;) speakers for my home stereo system. My receiver is only about 100 watts...
64 comments posted 20yrs
posted by mrdarrett
64 comments posted 20yrs posted by mrdarrett

Ferrite rings do anything or just marketing frill?

I've been noticing in some ATX PSU, they have been putting ferrite rings (that's the round thing I see on the end of vi...
32 comments posted 20yrs
posted by a?n?g?e?l
32 comments posted 20yrs posted by a?n?g?e?l

digital question update

Hello, I am still working on my digital cicuit. I wanted to know what would be the best way to do this. I need to outpu...
10 comments posted 20yrs
posted by ??l
10 comments posted 20yrs posted by ??l

telephone wiring for Vonage

I just got Vonage (www.vonage.com), a DSL service for voice telephone. It has a jack from a modem for your telephone, w...
13 comments posted 20yrs
posted by deodiaus
13 comments posted 20yrs posted by deodiaus

Musical LED's

I'm in a third-world country and have limited resources. I want to be able to create a "sound meter" out of 8 or 10 LED...
5 comments posted 20yrs
posted by blingcity101
5 comments posted 20yrs posted by blingcity101

Millamp drama!

Hiya I recently bought two transformers for my two guitar pedals. The transformers are regulated voltage, you choose th...
9 comments posted 20yrs
posted by metallichedgehog
9 comments posted 20yrs posted by metallichedgehog

Ceiling Fan installation

How easy is it to install a ceiling fan? Any special tips? Can I do it by myself? Handy man businesses cost a lot.
6 comments posted 20yrs
posted by an8churlver
6 comments posted 20yrs posted by an8churlver

A little h-bridge help?

I'm building an h-bridge motor controller using mosfets, the schematic to which is at the link below. It should be able...
14 comments posted 20yrs
posted by eriswerks
14 comments posted 20yrs posted by eriswerks

schottky tempco

Do schottkys have the same temperature coefficient as other silicon diodes? Many thanks.
13 comments posted 20yrs
posted by kellrobinson
13 comments posted 20yrs posted by kellrobinson

Signal/Pulse Modulation Help!!

Hi all, i am setting up multiple infrared transmitters and multiple infra red recivers, all connected to a pic micro co...
5 comments posted 20yrs
posted by akarsh000
5 comments posted 20yrs posted by akarsh000

simple oscillator circuit?

Hi, I am trying to use a at9sam7256 microcontroller.. i am using a programmable clock out line of this chip to drive a...
3 comments posted 20yrs
posted by bbalonis
3 comments posted 20yrs posted by bbalonis

IC's For Harmonics

Dear Sir, I had a small query which i thought i would ask you. can you please tell me if there are IC's which can read...
2 comments posted 20yrs
posted by pavannaren
2 comments posted 20yrs posted by pavannaren

Speed control

Is there any reason why I can't use a variable transformer to reduce the speed on a mini-lathe? http://www.ares-server....
7 comments posted 20yrs
posted by perilmung
7 comments posted 20yrs posted by perilmung

Electrically length

What do we mean by saying "electrical length" of an antenna?
22 comments posted 20yrs
posted by papageorgiou40
22 comments posted 20yrs posted by papageorgiou40