Hobby Electronics Basics

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generator

i would like to know something more about generators. i know they convert mechanical E to electrical E, but i would like...
4 comments posted 20yrs
posted by animus.car
4 comments posted 20yrs posted by animus.car

diode temperature coefficient

Some references describe diode tempco as -2.1 mV per degree C and also as 3300 parts per million. If parts per million,...
5 comments posted 20yrs
posted by kellrobinson
5 comments posted 20yrs posted by kellrobinson

dropping a variable voltage by 1v

I'd like to offset a variable voltage by 1 volt. What I have is an LM34 temperature sensor that outputs a linear voltag...
15 comments posted 20yrs
posted by reply
15 comments posted 20yrs posted by reply

How do I use SOIC chips?

Hi. I have some SOIC-chips, but I don't know how to use them. How can I solder those small ICs onto a board? Is there an...
3 comments posted 20yrs
posted by janrune(a)blan.no
3 comments posted 20yrs posted by janrune(a)blan.no

Pic tutorial?!

There´s a lot of PIC tutorials out there, books, Online Guides etc. Do anybody know of the most comprehensive and infor...
2 comments posted 20yrs
posted by mcm
2 comments posted 20yrs posted by mcm

Common mode voltage in op amps

Hello all, I am reviewing my old electronics notes in preparation for a comprehensive exam. In my notes I have written,...
3 comments posted 20yrs
posted by amanderr
3 comments posted 20yrs posted by amanderr

noisy relays

Hey all; I have a switching unit for my guitar effects that uses relays to switch the signal in and out. When I first b...
15 comments posted 20yrs
posted by toccata
15 comments posted 20yrs posted by toccata

RJ45 ports with Integrated Magnetics

Hi there, How this one differs form an ordinary RJ45 port? Thanks
3 comments posted 20yrs
posted by nospam4u_jack
3 comments posted 20yrs posted by nospam4u_jack

cant veiw schematics

Hello, I am new to news groups and to hobby electronics,I dont want to sound stupid but I've gotta ask "How do I veiw sc...
5 comments posted 20yrs
posted by rodneyjay
5 comments posted 20yrs posted by rodneyjay

LCR meter

I bought a digital handheld LCR meter thinking I could measure inductance of motors to see if the motor is bad. The mot...
16 comments posted 20yrs
posted by consultec
16 comments posted 20yrs posted by consultec

Storing Electronic Components In Plastic Trays

Is there any danger of excessive static buildup if I keep all my parts in the plastic fishing tackle trays (3700-series...
4 comments posted 20yrs
posted by blahbleh666
4 comments posted 20yrs posted by blahbleh666

20kHz to 2MHz Laser Vibrometer

Dear Friends, I am currently looking for a cheap Laser Vibrometer to measure ultrasonic vibrations upto ideally 2MHz. I...
11 comments posted 20yrs
posted by ravide
11 comments posted 20yrs posted by ravide

True or False ?

Hello and good morning to all members. A retired electrician told me that to prolong the life span on the contact point...
6 comments posted 20yrs
posted by mowhoong
6 comments posted 20yrs posted by mowhoong

interesting sounding ultrasound

Is it possible to produce an ultrasound with a varying sound or pitch... for example, replicating a police siren but at...
1 comments posted 20yrs
posted by will_usher
1 comments posted 20yrs posted by will_usher

Security camera too bright

I have a security camera that plugs into the AV jacks of my TV. The picture is much brighter (blown whites) than when I...
2 comments posted 20yrs
posted by none
2 comments posted 20yrs posted by none