Hobby Electronics Basics

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Computer Power Usage

Hello, Today I plugged in a power meter I bought a while ago, and decided to check out how much power my old Pentium 23...
6 comments posted 21yrs
posted by reetix
6 comments posted 21yrs posted by reetix

bandwidth and rise time

what factor, other than bandwidth, can also affect the rise time of a square wave?
4 comments posted 21yrs
posted by stillbreezy
4 comments posted 21yrs posted by stillbreezy

Who knows cell phones and antennas?

Greetings, Even though this is the basic group, my knowledge is less than basic but there are some pretty advanced folk...
7 comments posted 21yrs
posted by etpm
7 comments posted 21yrs posted by etpm

Power drop with R/C servos and PIC form same battery

I have built a servo controller around a PIC Microcontroller. The servos are pwered by a 6V NiCad battery pack that als...
8 comments posted 21yrs
posted by no-spame-matt
8 comments posted 21yrs posted by no-spame-matt

help with tcpip stack for microchip

Dear all, I was wondering if anyone knows how to use the tcpip stack of the pic microcontroler. The instructions appear...
0 comments posted 21yrs
posted by kerrisnow
0 comments posted 21yrs posted by kerrisnow

bandwidth and high gain amplifier

Is it possible to increase the bandwith of a high-gain amplifier by substituting two lower gain amplifiers?
1 comments posted 21yrs
posted by stillbreezy
1 comments posted 21yrs posted by stillbreezy

Low voltage Marx generator?

Someone asked a question about a Marx generator, which I had never heard of. I found the following site: and I started...
2 comments posted 21yrs
posted by bjones01
2 comments posted 21yrs posted by bjones01

Recargeable Battery

Does anyone know if there is a place where someone can get the batteries for the Dewalt drills refurbished. Nikki
4 comments posted 21yrs
posted by rickj
4 comments posted 21yrs posted by rickj

power supply issue

Hi. I have built this dual power supply. Transformer rating: 2 x 24 V 60VA Pretty standard with a bridge rectifier and...
5 comments posted 21yrs
posted by a-vinje
5 comments posted 21yrs posted by a-vinje

Help required - Outdoor Disco Lights

Hi, Not sure if this is the correct group to post this query to or not - but here goes anyway! I am looking to install...
5 comments posted 21yrs
posted by susan.copping
5 comments posted 21yrs posted by susan.copping

Impeadance question

What is the input impeadance of the majority of computer sound cards?
2 comments posted 21yrs
posted by puns
2 comments posted 21yrs posted by puns

cabling mystery

To protect an analog signal we replaced plain ribbon cable with shielded ribbon cable. The shielding we connected to ea...
3 comments posted 21yrs
posted by invalid
3 comments posted 21yrs posted by invalid

can anyone tell me what a spark gap capacitor is?

i went to an electronics store today looking for high voltage capacitors for building a marx generator,the lady behind...
6 comments posted 21yrs
posted by ngdbud
6 comments posted 21yrs posted by ngdbud