Hobby Electronics Basics - Main Page

Do you have a question? Post it now! No Registration Necessary

Hobby Electronics Basics - for you, electronics enthusiasts!
Web, RSS and Social Media interface to sci.electronics.basics
There are 100625 individual articles here that are part of 9326 discussions
Please see below the list of the most recent and the best rated articles in Hobby Electronics Basics

The most recent discussions

Re: What are the standard abbreviations for colors in electronics? IE. R = ...

August 31, 2021, 11:46 am

I know several. But the OP wasn't asking about color code, he was asking about color abbreviations. R for Red; G for Green etc. Read more »

Confirmation needed

August 30, 2021, 12:15 am

I'm going to make a 12v DC power supply with a linear reg. I will half-wave rectify 12v AC and have a smoothing cap. The load is only 10ma. So: 12v RMS is 17v peak, minus the diode drop of 0.7 is... Read more »

transformer core material

  [ 2 ]
August 24, 2021, 8:44 am

AIUI you use iron cores for low frequency and ferrite for high frequency because ferrite doesn't get magnetized, so why couldn't aluminum do the same? -- Defund the Thought Police Read more »

Solar charger

August 9, 2021, 7:06 pm

I have a solar charging I am using with my car battery. The current voltage of the battery is 12.7 volts. And the charger is still charging. Here are some specs for the charger. Rated power outpu... Read more »

1.8mm Pitch Connectors

June 14, 2021, 8:07 am

2.54mm connectors are easy to find. Is there anything off the shelf for 1.8mm? Read more »

Audio Attenuator

June 8, 2021, 8:29 pm

Hi guys, I have an old vintage HP audio osciallator which I want to use for some experimentation to get more practice in electronics. Its output is continually variable between 4 and 20 volts. Pro... Read more »

Word for making a bad connection?

May 12, 2021, 1:30 pm

What's the word for connecting something live and causing the connection to make and break several times rapidly, possibly damaging the equipment? -- Sent from my iPhone, this spam courtesy of App... Read more »

It May Be Time For A Coure In Basic Electroics

April 26, 2021, 12:15 am

Yup, I have seen them teach things wrong for decades. The students don't grasp the ideas the way they do it. Who agrees ? Read more »

Automated Power Cycle

March 24, 2021, 4:09 pm

Hey all, Has anyone used or installed a 120volt power relay that would allow for a 23 hour 59 minute on time and a 1 minute off time that would then repeat the cycle?? The desire would be to have... Read more »

Help required with 22V10 - Using a pin as Input an Output

March 17, 2021, 8:07 am

I'm having problems with the SDA part of an IIC implementation in a AMD 22V 10C (not from China!). I can Output data, to the SDA output, but I'm not ab le to read the SDA input! My CUPL equations, ... Read more »

Click here for other recent discussions »

The best rated discussions


Where to buy a small wheel hub motor?

Specifically, where can I buy a high quality small wheel hub motor (with wheel) like the one used for powered Trikkes? http://www.trikke.com/hd_2/Refurbished-Trikkes/Tribred-E-Kit-Upgrade http://www... Read more »


Satellite radio - radio validation

I'm curious, can someone provide a simple several paragraph, basic explanation of how satellite radio authentication works? eg. If the radio is only a receiver and I cancel my subscription how does ... Read more »


Max Frequency of SM 118A counter?

  [ 2 3 ]

Anyone know the maximum frequency of a Heathkit SM-118A? I have been all over Google with little luck. One guy said it would go to 1 GHz maybe 2 GHz, I don't think so. ... Read more »


Software for PIC 16F876

Hello, I want to built a simple datalogger with a PIC 16F876, and found a nice schema on the net. My problem: te software (source) is written in C, but i need a hex files to program the PIC processor... Read more »


Soldering Copper to Phosphor Bronze

Does anyone know if soldering copper wire to Phosphor-Bronze make a solid and reliable electrical connection? Would it make much of a difference if the copper wire is stranded or solid? If there is a... Read more »


Best Light for reading?

When choosing a Flourescent Bulb for a Task Light what is the best for reading.......my choices are 2700 Kelvin, 3000, 3500, or 4100..... Read more »


Thought experiment-will this work?

I think I pretty much understand how induction motors work. A typical single phase motor has a start winding that is approximately in quadrature electrically to the run winding. This provides the p... Read more »


How do you test a capacitor?

  [ 2 ]

Just bought a generator and it failed within two hours of usage. Mfg. say maybe capacitor and will ship a new one. But am not sure. I have a voltmeter with capacitor readings. Know how to test for re... Read more »


Electronic parts sites

I am looking for sites that sell electronic components. I have Jameco, but they don't have a lot of components. Thanks, Andy Read more »


UCANDO videos

If anyone has any old ucando videos on the subject of AC or DC or power supplies or amplifiers or any basic stuff and you want to sell them, at a resonable used price, I'd be interested. I'm just ... Read more »